360 race engine help

[Darthemi75]

I have a 360 engine, and i like to make a race street car.
My idea is to use my 340 heads 2.02.... with the RPM air gap manifold, but which is the best camshaft for my combination (in my garage i have mopar 284 and the 268 cam´s) or what other recomend me to use.
The other question is which piston i would need to make this car runs better (i think in 9.5 compression aprox).

 

[ramcharger]

You would get more responses if you would put this in the appropriate section.