What spark plugs do I need...plz help. Small Block Chevy '99 suburban block, stock 350cid configuration ZZ4 Corvette heads 2.02/1.60 valves

Cam specs: Cam Style Hydraulic roller Basic Operating RPM Range Idle-6,000 Intake Duration at 050 inch Lift 218 Exhaust Duration at 050 inch Lift 228 Duration at 050 inch Lift 218 int./228 exh. Intake Valve Lift with Factory Rocker Arm Ratio 0.525 in. Exhaust Valve Lift with Factory Rocker Arm Ratio 0.525 in. Valve Lift with Factory Rocker Arm Ratio 0.525 int./0.525 exh. Lobe Separation (degrees) 112

Holley 650 "double pumper" StreetHP Carburetor Single plane intake... Heads are approx. 190cc intake runners port matched to intake. running shorty headers w/ 2.5'' collector Pertronix Ignition "Ignitor III" w/ 5,800 rev limiter 8.5mm wires manual t-5 tranny Car will be daily driven...thanks Not sure if you need all this info, but thanks if you can help me!!!