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I want to thank everyone for their help with my intake question. I had two main goals...weight reduction and keeping it as "stock appearing" as possible, performance was second. The aluminum intake would have had any obvious markings removed and been painted the factory color. After reading...

I have always been partial to TQ's. The heads on my motor have had some work done to them. I would call it more of a "clean up" than porting. I have a Demon which looks kind of similar to a TQ. It's a good carb, just not the right one for this motor. On a side note as stated I am partial to the...

I want to swap my cast iron 1971 340 thermoquad style intake for an aluminum intake. Most of the ones I've looked at have provisions for an egr or other emissions. Anyone know if there is an aluminum intake similar to stock intake without the egr provision?

No it's defiantly the carbs. 2 of the 4 leak gas from cracks in the plastic bodies. One is leaking at the mixture screw. The forth one I've gone through twice no matter what I do it idles really bad.

No plans for a rebuild, the motor runs really well. I'm just tired of messing with the thermoquads. I've had 4 different ones on the motor. They've all been rebuilt and all 4 have nothing but problems. With all the money I've spent on them I could have just bought a new one from the start.

I'm looking at getting this style Demon carb to replace my thermoquad. My question is what CFM? They list a 625 and a 750. I was leaning toward the 625 at first but after doing some research it might be to small. The motors is a 440 auto trans out of a 1978 Dodge truck and is completely stock...