Offenhuaser dual port intake and Holley 550 on 318

i agree that the cam will help. good advice, but i disagree, long duration cams do not give better compression

This is the truth. To big of a cam can lower cylinder pressure but a larger cam can also be used to bleed off some compression with a higher compression engine. To big of a cam in a low compression engine *almost always equals
dissapointing bottom end performance. Overall combination and the cubic inches are the major factor here. For example, a 440 can handle quite a bit of cam due to it's cubic inches....