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How do I lean out the cruise and richen the idle. Bought an afr gauge and the results surprised me. Reading 10.8 at WOT, 11.8 cruise and 15.0 at idle. Box stock proform 750 dp. 3 emulsion blocks all open. 74 an#80 jets. IABs .070 and hsab .028. So plugged the center emulsion other two are .028...

Will shorty headers work on a 64 dart with a 273.

Blew my engine this last race. Broke the crankshaft in half. It's a 440 factory steel crank in about a 650hp engine. Short block was about 9 years old and was at just under 600hp. Added new trickflow heads, dominator crb. And ported super victor and on the fifth run it blew at the top of 1st. My...

Just pulled my 340 and set in the new 408. Engine runs well and is stout but I have a random miss at cruise rpm. About 3000. Same carb and distributor as the 340 which didn't do this. Initial is at 24 and 32 total and 50 with vacuum advance hooked up to timed port on carb. If I unhook the VA it...

I've been looking at alot of builds using hydraulic roller cams and I am very impressed with the hp and torque with some pretty small roller cams. Seems like most people on here dispise them.

My local track canceled the big money races for next week. I would guess not enough entries. I hope things get better after november.

My friend is installing a disc brake kit on his 64 dart. Kit does not have lines. What stock brake lines will work? Will late a body lines work? Like 73 up.

I've heard sbc +.050 and sbc +.100. What is actual length in inches. Thanks.

Do the reverse wound direct clutch spring work?

This might be my last year of racing. With prices the way they are its just getting to expensive. Everything to race has went up substantially. Gas prices, tires are up, all engine parts, it's just gotten crazy. Some things have went up more than 50%. Hope it changes in the future. But it isn't...

Why is it so easy to make a sbc head with a 200cc intake port. But seams impossible for a sbm. I know they are of different design but it doesn't seem that different.

I have to admit I really enjoy npk racing. Real heads up racing with all different combos and cars. Some good racing and driving. Way more fun than Nhra crap. Not as much drama as street outlaws. Racing is getting very competitive.

Any problems with using milodon main studs in a 360. I can't get arp with windage tray anywhere. Thanks.

I recently put a nitrous kit on my 340. Its been working well until last week. When I acctivate the microswitch it falls on its face now. Like its out of nitrous. I checked both solenoids they seem to be working fine. Pulled the carb and hit it and the plate seem to be putting out plenty of...

I finally purchased a 408 stroker kit from scat. Here is my plan. 10:1 compression, ported speedmaster heads, following PBRs thread. Howards solid cam 254-260 at .050 .586 .593 lift before lash. rpm intake 750 holley dp . Besides stroker kit I have all the parts. This is going in a 3500lb 68...

Lately my car has had a fuel delivery problem. Its fine for about the first 10 minutes. Runs through the gears just fine shifting at 6500. By 15 minutes or so at about 5000 it falls on its face and then recovers in a couple seconds. I figure this is when the fuel bowls empty and not refilling...

These are my plugs after 2 nitrous passes. How do they look? Ngk #7. 10 to 1 340 alloy heads.

Which is better. Stock wire type or snap ring. 2316 pistons. I have both. Wire type came with new pistons. Snap ring type where on old pistons also 2316. The old saw 7000 rpm and some nitrous and never failed. Never had experience with wire type. Thanks.

I have a chance to buy some world 260 bb heads on the cheap. Has anyone ran these heads, and are they good. Says they take all stock components. Thanks.

I need a 340 2316 +.030 piston used or new. Thank you. Passenger side.

Need one speed pro 2316 piston .030 over. Thank you. New or used in good condition. Passenger side. Or a used set.

I'm sick of part suppliers giving me false shipping dates to get my order. My roller cam. Ships in 4 weeks, its been 8+. Tires. Ships next day, been 3 weeks. Pushrods, 2days, been a week+. Very frustrating. No emails or anything.

I'm looking at some King rod bearings. They say they're alecular alloy. Will these hold up in a 10 sec. bracket engine or should I spend the coin on some race type bearings. How do they compare to a Tri-metal bearing. Engine is 10.5 to 1 440 running pump gas.

I se where some builders use 1.6 rockers on the intake and 1.5 on the exhaust. What is the purpose of this?

Why am I blowing bypass hoses. Blown up two in a week. Only thing changed is new belt. Anyone else have this problem. I think belt was slipping before, but this still shouldn't be a problem. Thanks.

My local track is going to 1/8 mile for all cars faster than 11.60. This is the bracket series. I've raced alot more 1/8 than 1/4 but always look forward to running the the 1/4. Now almost all my racing will be 1/8. Bummer. Might run my 5.13s now.

Recently put a 100 shot on my 340. Works well but has developed a long delay before it activates. At first it was like a 1/2 sec. delay when I mashed it using the wot switch. Now it like a 2 to 3 sec. delay. It still works well just a long delay. Bottle pressure at 950 fuel at 9 . No controller...

I’m going with a 100 shot on my 340. I have SM heads. Can I run a projected tip plug since the plug is recessed so much. Ngk 6 projected or ngk 7 non projected? Nitrous will be used to race only. 80% street 20% track.

I'm getting some 1.6 roller rockers for my 340. The 2 i am looking at are the PRW ss and mancini aluminum made by HS. These will go on a solid cam with about .560 lift with the new rockers. seat pressure is 145 and open 350. Thoughts please. Might step up to a roller later but nothing radical...

Is .032 quench to tight for nitrous.