Carb recommendations for my 340

Dan the man said

I'm really surprised that more of you guys didn't mention the tried and true thermoquad. The 340's came from the factory with them, guys have said how easy they are to tune and how much better they are for throttle response and yet the thermoquad was only mentioned a couple of times. A edelbrock performer rpm and a thermoquad carburetor and your good to go. Is this bad choice?

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The big PIA about there use is they have a choke that uses a choke well on the intake which the LD-340 doesn’t have. Rigging up a pull cable is a PIA and IMO, doesn’t look very good.

I used a 440 TW on top of my LD-340 without a cable.

I don’t know where you have seen a TQ for those prices but I’d guess there rebuilt. I have a few for sale as of this date in the for sale section. 1 ready to run and a couple rebuildable that I listed as for parts.


Chevy arm, small primary, electric choke TQ I personally used on top of a B block 400 cid engine. Swapped for a big primary TQ. Removed and drained. Shelved inside.
[FOR SALE] - Electric choke TQ