416 Dyno Results

Below are my engine specifications and Dyno results.

416 engine
Edelbrock RPM Heads with stage 1 port work
11.25 compression
Lunati Voodoo Cam 242/252 Duration@50 533/550 lift
LD340 intake
825 Mighty Demon Carb
TTI Step Headers
Kevko Oil Pan
37 degrees timing
Forged Ross pistons, K1 Crankshaft and Scat I Beam Rods
MSD 6 AL ignition

Dyno results are not corrected.
Temperature: 93 degrees
Humidity: 22 percent
Barometer:29.56
Engine Temperature 165

Peak rwhp: 385@ 6000 rpm
Peak torque: 390 ft-lbs@ 4800 rpm

9 1/2 Dynamic Converter 4000 stall
4.10 Rear Gear

What octane of gas are you using to keep it from detonating/pinging?