Valve / Piston Clearance in 383

To be honest, after doing some research I think I might leave the Mopar Purple 484 cam in it (P4120235). I quite like it. Just looking at either doing some work on the 516 cast iron heads or getting a pair of 440 Source Stealth alloys. Current engine spec is:

383, bored 30 thou, flat tops, comp 10.1
Mopar Purple 484 Cam
516 heads, cleaned up, hardened valve seats, stainless 2.14/1.80 valves, dual springs
Edelbrock TM6 single plane intake
Holley 4779 Double Pumper
727, 3000 stall, 4.10 sure grip.

Just want to get some power out of it.