If it was me I'd leave the stock heads and then add the bolt ons. If you want to use the 308s, use the thinnest head gaskets you can find, and a camshaft in the 215-220 @ .050. Smaller would be better IMO. If you know nothing about that cam, get one new that you do know about. Then make sure you degree the new camshaft and that you replace the valve springs with Comp Cams 901-16s.
