Hello everyone, let me explain...

I have a 1991 firebird formula that came stock w/ a 305 HO matched with a 700R4 tranny, like most have. I threw a rod through my oil pan making a pretty peek hole in it...

Well, i found a 350 4-bolt main that is a little older... stamped 350 insted of 5.7 and is that light blue that they painted them back in the late 70's. I pulled the heads off of the 350 and swapped them for the stock 305 heads and intake(TBI) that i had from the origional engine along w/ the distrib and coil.

after it was all said and done... primed and timed(4º adv.)... i got her started. She fell on her face when i stepped on the gas... timing was off... i thought. We advanced the timing to 14º, it ran better... idled high around 1800rpm and still loses power when i get on it.

also... i find myself priming it with gas manually from a gas can...


so, i'm looking to get rid of the ECM and go carburated. i have a set of vortec heads for a 350 and a holly 650. would it help if i swap them in? please help!!! I'm really in a bind w/o a vehicle... anything would be a big help. thanks for your time!!!