Cylinder Head Choice

I think the 171 version is all you need for a stock compression 318 with a mild cam for a well balanced combo. 185's have more potential but that cam won't use it and the larger ports hinder port velocity. Spend the savings on converter or rear end where you'll get a bigger bang.

I posted it as an example, that I have had good results with. I was just saying above to him, I think it is more head than he needs at the moment since it is a low compression 318. If he had more compression and a bigger cam, they would work well. I don’t think the head ports cc amount is an issue.