hey i have an 84 trans am with a H.O. 305 engine and 84 for was like the only year they had a computer and carburator. i cant find any aftermarket carb that would work on the car. i have tried holley and edlebrock. the computer controls not just the carb but also the transmission. so in order to swap a new engine in my car like a 350 i would need to put a bigger carb on my car and i cant find any carb that would work. i was wonderin if any one has an 84 trans am with a 350 or if anyone knows how to by pass the comp or wrip out the computer and not have any problems. thanx

 

That is correct, there is no other carb that will substitute directly.

You could either just use it, there are modifications that will wnable it to support a larger motor; or you could entirely remove the ECM and its wiring (carefully, WITHOUT HACKING even), and just roll it up and put it in a box, and use the carb and dist of your choice.

ALl you have to do for the trans, is to tell the converter clutch when to lock up. A switch on the shifter handle works great. B&M or somebody like that sells one.

 

Why can't you use the same carb on the 350?

 

There are many mis-statements in the original post:

1) 1984 was not the "only" year they used a computer controlled carb. Every US-delievered 3rd gen with a carb'd V8 had a computer controlled carb.

2) The computer does not "control" the transmission. The only fuction it provides is to lock up the torque converter clutch (the transmission also tells the computer it has shifted into 4th). [Oops, RB already said that.]

3) As stated in a post about q-jets on the carb forum, you don't need a larger carb - it will handle a much larger engine - at least from a flow standpoint ( https://www.thirdgen.org/techbb2/sho...hreadid=247425 ). I also posted about my "day dream" of putting my 396 into the Camaro and retaining the CC q-jet (https://www.thirdgen.org/techbb2/sho...hreadid=245077 ). You can see from the responses that it isn't a totally crazy idea. In the magazine articles on this board, there are two articles about a CC 383. And this thread about the ZZ4 ( https://www.thirdgen.org/techbb2/sho...hreadid=247588 ). After all, in their HO 350 Camaro Conversion Kit, GM retained the original factory CC q-jet for that 355 HP engine (the HP it actually put out is up to debate - with proper headers instead of the cast iron manifold system, 355 HP gross flywheel is reasonable).

In my little ol' pea-picking opinion, de-computerizing a currently computerized carb'd daily driver is about the worst way to spend your money when it comes to performance improvement.