Thread: Ramshorn exhaust manifolds on Vortec heads

Tweet

I will call Speedway and inquire about the Vortecs. The local Chevy dealership is a laugh for technical advice. I will go with the Rochester Quadrajet. One rodder told me the reason he didn't use the Q-Jet is because the Q-Jet bowl empties with hard acceleration but the Holley doesn't. I know that Ford used the Q-Jet on the '69 429 engines because they could deliver the $.50 gas better.

Thanks again for the advice.

Vortec Heads....................

http://www.superchevy.com/technical/...0511sc_vortec/

Thanks for the article link. I have the older Vortec heads. I just spent an hour in the garage putting shims between the manifolds and the heads and found that my ram's horn manifolds will barel fit between the frame rails of the Chevy. I will use the later model manifolds because they don't have the bulge on the lower end or I will get block hugger headers.

Thanks for the post. Incidentally, I had a '57 and paid $3393 for it new. It had every option Chevy offered and a 283.