Thanks..... IF i do buy 351 heads, will i have to buy a 351 manifold, or is it the same thing as a 289 manifold?

 

the 351w heads have 1.84/1.54" valve sizes.

and you will still use an intake manifold for a 289/302, the difference in deck height is was necessitates a wider intake manifold for a 351w. the heads are the same dimensions.



valley firearms, a gear drive, huh? contemplating whether or not i should get one for my motor.

 

get the quiet gear drive. trust me.

 

Ok guys. I want to ask your opinion on this. If i get 351 heads, and also a Edelbrock RPM intake, and matching cam, with a 500 CFM edelbrock performer carb, just what is a guessimate of how much power i will have? thanks.