Post your 12 second small block combos

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rmchrgr said:
Just doing a little internet bench racing here. I'm sorting out a 340 on paper using the old "How To Hot Rod Small Block Mopars" tables in the back of the book. I want to get into the 12's. The tables are basically saying use a TQ or Holley 7-850, headers, (duh) Holley Strip Dominator/M1, the MP .528 solid cam and an electronic distributor.

I'm curious though as to how you got into the 12's with your small block A-body. Looking for non-stroker stuff here - 3.31" arm only.

Please list engine specs like cam, compression, head choice, ported or not, valve size, carb, pistons etc., chassis/trans/driveline, tire size, weight of the car if you know it and any other pertinent info.

Pics are good too!
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Seems to me the OP is asking about 318s and 340s only, unless somebody out there is running 360s with a 3.31 stroke...
 
Topless69 said:
Seems to me the OP is asking about 318s and 340s only, unless somebody out there is running 360s with a 3.31 stroke...
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Well now that I look at the OP I see that, I was just reading the title and enjoyed looking through and seeing all the small block combinations to reference for potential of different combo's. I also know many others posted about 360's and probably some stroked small blocks.

So is there another thread that meets the meaning of the title that is sticky?
 
Archeryguy02 said:
Well now that I look at the OP I see that, I was just reading the title and enjoyed looking through and seeing all the small block combinations to reference for potential of different combo's. I also know many others posted about 360's and probably some stroked small blocks.

So is there another thread that meets the meaning of the title that is sticky?
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I think your good. I think they made this a sticky to post 12 second combos here. Op posted 11 years ago.
 
Yeah I noticed after posting to it today it’s over 11 years old! To answer Archeryguys question, there is a ‘post your 11 second setup’ thread from 2018 under:
‘Post 11 Second Small Block Combo’
Edit: That thread was started in 2010 too! Been a long day...
 
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Topless69 said:
Yeah I noticed after posting to it today it’s over 11 years old! To answer Archeryguys question, there is a ‘post your 11 second setup’ thread from 2018 under:
‘Post 11 Second Small Block Combo’
Edit: That thread was started in 2010 too! Been a long day...
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I am looking forward to posting in that thread as well, but I am not in a real hurry to get there. I built the car to run a 12.0 sportsman bracket and dont really want to detune the car. There are lots of cars detuned running 12.0's but even at a 12.2-12.3 dial in I have more top end than those cars due to my converter being a bit tight. The extra top end to this point has given me advantage when wheel racing at the finish line. The only downside may be how much the tight converter hurts my consistency, I should have a better idea about that after a couple more days at the track.
 
-71 Duster. Fenders and Hood are fiberglass, so i dont know how much car weight? Maybe 3000lbs whit driver?

318-390 stroker
Icon flattop Pistons
Eagle forged crank
Scat-i beam
Edelbrock rpm heads. Ported 266/[email protected]
Edelbrock Victory intake
Holley 750QF
Tti headers
Mp 296 cam
Proform rockers

Trans 904
Manual.valvebody
4000stall

8 3/4
3.91
Suregrip

26*11,5 r15 Et Street
Stock suspenssion system.

-Best Et 12,4/111mph 60ft 1.9
 
Valiant65blower said:
-71 Duster. Fenders and Hood are fiberglass, so i dont know how much car weight? Maybe 3000lbs whit driver?

318-390 stroker
Icon flattop Pistons
Eagle forged crank
Scat-i beam
Edelbrock rpm heads. Ported 266/[email protected]
Edelbrock Victory intake
Holley 750QF
Tti headers
Mp 296 cam
Proform rockers

Trans 904
Manual.valvebody
4000stall

8 3/4
3.91
Suregrip

26*11,5 r15 Et Street
Stock suspenssion system.

-Best Et 12,4/111mph 60ft 1.9
Click to expand...

Get that thing to leave the line and it's an 11.80 car. Keep tuning and finding MPH. My guess there is a bunch more MPH there for the taking. Nice and keep at it.
 
Stripped 73 Duster
Still 3275 lbs w my fat *** in it.

5.9 Magnum
Cleaned up iron heads.
THUMPR cam
750 AFB
Crosswinds intake
Hooker Headers w 16” collectors
A999 transmission
3.91 rear
10” slicks

12.62 sec. 109mph
Thiinkin I could do better.
 
6pak said:
Stripped 73 Duster
Still 3275 lbs w my fat *** in it.

5.9 Magnum
Cleaned up iron heads.
THUMPR cam
750 AFB
Crosswinds intake
Hooker Headers w 16” collectors
A999 transmission
3.91 rear
10” slicks

12.62 sec. 109mph
Thiinkin I could do better.
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That's awesome!
 
66Valiant528 said:
That's awesome!
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That was Last time i was at the track. since, i’ve stripped a little more weight, gone to electric fans, manual steering.
But haven’t made it back to the strip. I’m sure I will need a to be VaXXed and a “mask” to run under my helmet.
 
racerbob said:
1971 340 .030" over 10-1 forged pistons, stock rods & crank, .509" MP hyd cam & lifters , MP double valve springs, 915 J heads with 2.02 intake 1.6 exhaust valves, Wieand single plane intake manifold, Holley 650 cfm double pumper (list 4777-6) carb, hooker competition headers (1 5/8" diameter tubes) through 3" dynamax bullet mufflers, electric water pump drive, electric fuel pump

3600 rpm stall turbo-action converter , 727 trans, 4.10 rear, 26/8.5X15 MT ET Drag SLicks, Compettion engineering drag racing shocks on all four corners, stock 340 suspension in front (with sway bar and disc brakes) , MP SS springs (3000 lb) in rear, MP subframe connectors (bolt -in)

in a 1973 dart sport, car weighs 3340 with me in it.

11.92 @ 111.92 mph in the cool aior last November, low to mid 12's all summer long

Some people have told me my carb was too small, but every time I have tried a larger one the car slows down??
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6pak said:
That was Last time i was at the track. since, i’ve stripped a little more weight, gone to electric fans, manual steering.
But haven’t made it back to the strip. I’m sure I will need a to be VaXXed and a “mask” to run under my helmet.
Click to expand...
Grrr
 
Valiant65blower said:
-71 Duster. Fenders and Hood are fiberglass, so i dont know how much car weight? Maybe 3000lbs whit driver?

318-390 stroker
Icon flattop Pistons
Eagle forged crank
Scat-i beam
Edelbrock rpm heads. Ported 266/[email protected]
Edelbrock Victory intake
Holley 750QF
Tti headers
Mp 296 cam
Proform rockers

Trans 904
Manual.valvebody
4000stall

8 3/4
3.91
Suregrip

26*11,5 r15 Et Street
Stock suspenssion system.

-Best Et 12,4/111mph 60ft 1.9
Click to expand...

Little update... Last Weekend on Street Race 1/8. Best time 7.511 60ft 1.904..
 
picked the kids up from daycare, had dinner, swapped my tires and went to the track for test and tune last night. It was a rare 58* with low humidity with that crazy full moon! Anyway I snuck into the 12's on my first run and I still had two baby seats in the car!!!
image.jpeg


it's a 373 (340 with the forged SCAT rotating assembly kit; 3.58 stroke 4.070" bore)
comp XE275HL cam .525 231/237@ .50 advertised
Holley 650 with a .50cc pump on the secondary jetted 70in the front and 76 in the back
904 with a Dynamic 9.5 converter
hand ported 587 J heads
Hoosier 275/50 slicks
the last time I weighed in the car and I were 3600#. We've only both got heavier over the last couple years!!
 
1969 340 stock 3.31stroke. Mopar performance 497 hydraulic camshaft, TA 6 pack, pro Comp heads competition valve job, factory forged crankshaft 340 HD rods Keith black 243 Pistons, four-speed, 391 rear,drag radials... She's an older rebuild and getting kind of tired but I'm taking it to the track this spring and hoping to post an update in this thread at that time.
 
like_A_pike said:
picked the kids up from daycare, had dinner, swapped my tires and went to the track for test and tune last night. It was a rare 58* with low humidity with that crazy full moon! Anyway I snuck into the 12's on my first run and I still had two baby seats in the car!!!
View attachment 1715892246

it's a 373 (340 with the forged SCAT rotating assembly kit; 3.58 stroke 4.070" bore)
comp XE275HL cam .525 231/237@ .50 advertised
Holley 650 with a .50cc pump on the secondary jetted 70in the front and 76 in the back
904 with a Dynamic 9.5 converter
hand ported 587 J heads
Hoosier 275/50 slicks
the last time I weighed in the car and I were 3600#. We've only both got heavier over the last couple years!!
Click to expand...
Congrats! 60' looked pretty soft if i read that slip right? Nice thing is that 373 is making some smoke, 86 in the 1/8th. That 275HL doesn't get enough attn. imo. :thumbsup:
 
1971 Demon- all steel/full interior

1969 340 stock crank/rods
KB hypereutectic piston “stock dome”
Comp 507/510 lift 240/[email protected]
Iron heads with 2.02/1.60 valves
Slight porting in bowls
Airgap intake
Aed 750 Hp Carb
904 with low gear set
A used “off the shelf” TCI 3500 stall.
8-3/4 with 4.30 gears
275/60R15 drag radials

12.72 @ 107.5 in Las Vegas

It really needs a better stall and manual valve body. ET being lost in the 60’. 1.89 has been its best 60 so far, usually high 1.9X

D1842B97-B48E-49F5-AC64-6FE3470549FA.jpeg
 
lv6spd said:
1971 Demon- all steel/full interior

1969 340 stock crank/rods
KB hypereutectic piston “stock dome”
Comp 507/510 lift 240/[email protected]
Iron heads with 2.02/1.60 valves
Slight porting in bowls
Airgap intake
Aed 750 Hp Carb
904 with low gear set
A used “off the shelf” TCI 3500 stall.
8-3/4 with 4.30 gears
275/60R15 drag radials

12.72 @ 107.5 in Las Vegas

It really needs a better stall and manual valve body. ET being lost in the 60’. 1.89 has been its best 60 so far, usually high 1.9X

That's moving pretty good at your elevation. A shorter tire 26" will also help the 60'
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/68 340 stock long block untouched 30k orig miles.. GK solid 288/530 , LD 340. 750 holley d/p stock converter, street tires, iron ex manifolds , stock air cleaner on ..4;56 out back 12;70@ 108 in full street trim.. killed many 11 second cars on the street with it...stock hubcaps on it even.. orig pp1 red paint
 
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What size engine?

ph23vo said:
/
stock long block untouched 30k orig miles.. GK solid 288/530 , LD 340. 750 holley d/p stock converter, street tires, iron ex manifolds , stock air cleaner on ..4;56 out back 12;70@ 108 in full street trim.. killed many 11 second cars on the street with it...stock hubcaps on it even.. orig pp1 red paint
Click to expand...
 
Hysteric said:
1964 Valiant 3300 pounds with driver
360 .70 over with 9.6-1 comp
Ported 302's 62 cc
Performer manifold with Edelbrock 600 carb
Crower 271 HDP cam 1.6 rockers
1.5/8 headers and 2.5 inch exhaust
904 TA 10 inch converter
8 3/4 3.73 gears
M/T 255 street radials

Ran 13.04 @ 102.5 with a 1.84 60ft pulling 4 inches of vacuum at the finish line.....
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4 inches, boy do you need a bigger carb
 
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