Any 318 Performance tips?

The heads are the only thing left to do as far as big parts go. I see no waste of time polishing and/or porting them. IF you had the cash, I'd do a nice new set of valves, 2.02's. Use your heads, skip the 302's.

I feel your cam is a little big for the combo's low compression. Do you know what the exact ratio is? Otherwise, you look good to go.