Finally the decision has been made.

From what I understand, which is not much. the jump is from single to dual that pushes you into machining and seals etc. That is why I am sticking to strong singles. I bought 2.02 J heads that I didn't want to have a bunch of work done to. Cheaper to pick up speed master AL head right now then mess with some stock 302s. Then you get everything you need to go as big as you want.