Carb recommendations for my 340

[Dan the man]

are you for real?

there's several on the classifieds right now that are sub $200, they're all over ebay and offer up and CL, you can get them at swap meets all day. **** man, i have TWO sitting right here: a superquad with electric choke and a 440 HP2 unit that i'd take peanuts for.

numbers matching, rare TQ's sure, they command big money. but a bread and butter one that'll work for just any old small block? you can get those all day, every day and twice on sunday for the cost of a nice dinner out.

The $450 I posted was for a rebuild TQ. Do I know if it's worth it, I don't know

 

[Dan the man]

are you for real?

there's several on the classifieds right now that are sub $200, they're all over ebay and offer up and CL, you can get them at swap meets all day. **** man, i have TWO sitting right here: a superquad with electric choke and a 440 HP2 unit that i'd take peanuts for.

numbers matching, rare TQ's sure, they command big money. but a bread and butter one that'll work for just any old small block? you can get those all day, every day and twice on sunday for the cost of a nice dinner out.

I haven't looked in a long time but I've never seen TQ'S on Craigslist

 

[junkyardhero]

I haven't looked in a long time but I've never seen TQ'S on Craigslist

here's two on offer up:

Carter Thermoquad Carburetor 1979-80 Dodge Truck 318 360 for Sale in Whittier, CA - OfferUp

For Parts, Core for parts or rebuild.. Make an offer!;

offerup.com

Carter thermoquad carburetor for Sale in Vancouver, WA - OfferUp

Used (normal wear), I have a Carter 4 barrel. Quadrajet carburetor with a rebuild kit less than a year old. This is an awesome carburetor a rare one, and the title thermoquad. Expresses the fact that the housing on the bottom half. Is a type of plastic resin That keeps the fuel much cooler...

offerup.com

here's one with a 340 intake!

1970 Dodge Plymouth 340 Intake w Thermoquad v8 mopar Duster Dart Cuda Challenger for Sale in Hialeah, FL - OfferUp

Used (normal wear), $200 if u need shipping its heavy over 50lb so will cost a bit depending location , only accept cash in person or zell . Make an offer!;

offerup.com

just for pedantic measure here's two off of CL:

Carter Thermoquad Carburetor - auto parts - by owner - vehicle automotive sale - craigslist

Carter ThermoQuad Carb 9211S factory off a 79 440 Probably needs a rebuild (not sure) $80 Las Cruces Near the 70 and Sonoma Ranch rd

lascruces.craigslist.org

Chrysler thermoquad carburator - auto parts - by owner - vehicle automotive sale - craigslist

This is a factory 780 CFM Chrysler thermal quad as released on many Chrysler Big Blocks in the 60s and early 70s. this carburetor does need some cleaning and possibly an accelerator pump kit. Please...

eugene.craigslist.org

this search took me less time than to link and write this.

the parts are out there.

 

[rumblefish360]

Heck, 1 of the TQ’s I have up for sale I listed as a parts carb but it’ll take a rebuild out and work with a good thorough cleaning

 

[jeff alder]

Oh boy, I hope that I don't open up a can of worms here, but I've never seen a Q- jet on a mopar. Not saying that it hasn't been done or won't work. Does the Q- jet require some type of special linkage for the throttle and for the transmission. What intake manifold will accept the q jet or does it require a adapter? I known a guy who used to be good at tunning a Q jet because he couldn't afford a holley. Again I'm just asking

Quadrajets actually work great on a small block mopar thermal quad intake. I bought a 67 Barracuda back in 82 with a 318, 360 j heads with a double roller chain,3 speed manual and not sure what else was done to the engine. I bought it from a machinist. We romped on it on the way home and when the secondaries popped it was exhilarating. Under further examination when we got home there was a Quadrajet on it. It ran so good with that quadrajet I left it on for the whole time I drove the car.

 

[Andrew vanman87]

i had a 600 cfm edelbrock on my mild 340 then later swiched out to 750 holley mechanical secondaries ... my exprice was

the 600 edelbrock did have some advantages over the 750
better gas MPG I was able to get 22mpg with my 340 ,904 rear 2.76 combo

it was great for driving every day and the electric choke was nice for cold start ups

as far as the 750 dp mechanical secondaries
as far as performance it was better then the edelbrok ... hands down even with my stock 1.88 heads mild cam

but i did not get 22mpg with with the 750 and it got worse once i switched to 3.55 gears ... also i did have to keep my foot on the peddle until it was warmed up with the 750 ( no choke)


so which is better ? kinda what you value raw performance goes to the 750... as for is a daily driver 600 eddy was a great carburetor

 

[str12-340]

750 AVS2... 650 too small

 

[Bewy]

There is no 750 AVS2........

 

[rumblefish360]

He probably didn’t proofread the mistake. I’m pretty guilty that myself. I’m pretty sure this member knows that but 650 AVS is what I think he was after.

 

[Super-Cuda]

He probably didn’t proofread the mistake. I’m pretty guilty that myself. I’m pretty sure this member knows that but 650 AVS is what I think he was after.

Absolutely agree.

 

[Bodyperson]

800 probably flows 750 anyway.

 

[str12-340]

OOPS, yes 800 AVS2... Since the secondaries open on demand it wouldn't be too much.

 

[rumblefish360]

That’s true. I have an 800 AVS on my 10.5-1 - 340 with a XE285HL. Actual flow, IDK. I did flow test a Edelbrock 600 AFB and it did flow 600 cfm.

I was toying with the carb grinding away at it and managed a best of 715 cfm - IIRC. I did this on Charlie’s flow bench along with a video on it. I’ll have to find the paper work on it.