318 piston questions

I thought it might be helpful to post more of my combo (if you could call it a combo).

The motor is going to be a 2bbl motor (for a while anyway). My original plan called for a 360. But after buying a motor and the block being cracked I decided to just do what my Dad wanted all along. Build a stock spec 318. But now that the machine shop called about the block needing boring I am thinking that I might just use some better pistons and a better cam (with the 2 bbl) for a while. Then next around next summer adding the 4bbl set-up once we get any-all bugs worked out on the car.

So what kind of pistons and cam could I get now (using 2bbl) that would work well with a 4bbl set-up later?