What cam to use.

I have just bought edelbrock heads for my 383. Any idea how much piston to valve clearance I have with a zero deck and 84cc heads, 5cc relief? I'm unsure what cam to use. I have a 3000 stall in a Protrans, 4:56.1 gears,29.5x9 ET drag slicks, performer rpm with a holley 750vac sec with the block kit(will replace with better if needed). Edelbrock rpm heads with 9.1.1 uncut or 9.8 cut .040 with .039 gaskets. I want to go as fast as possible without changing any of the core parts. It's in a 70 Dart 3100lbs. I and planning on a small nitrous shot and next year I plan on a procharger P1sc. So, what cam advice do you all have.