I bought a 92 vette with all this installed. The owner set it up for boost, but due to a lack of money and being a cheap ***, i'm just going the N20 route. The motor when new made 316rwhp and 390rwtq.

What do you see as my shot size limit and what would you replace? Any cam suggestions? Anyone know anything about these heads?

383 Stroker 9000 miles on it.
9.5-1 compression
Forged Scat Crank
Forged H-Beam Rods
Forged JE/SRP pistons
ZZ409 Cam from TPIS (Adv. duration 287/287, duration @.050 226/226, Lift .520/.520. 112 LSA)
1.6 GM Rockers
TPIS Springs to match cam
52 MM T/B from TPIS
Ceramic Coated Headers from TPIS
FMS 30# Injectors
Port Matched intake to heads
Stage II Heads from Competition Machine in Plano TX
MSD Ignition
Cold Air Intake
New Opti Spark
Taylor 8mm Race Wires and retainers
New GM Balancer
TPIS Custom Chip
Ed Wright Chip