I love your build! What are you using for engine management? Standalone ECU, piggyback or reflashing the OEM ECU?
Our pull type clutch doesn't hold power very well and has a limit around 500WHP. But there are some strong clutches out there by clutch masters and SPEC that will hold 400+ WHP. The FX500 and SPEC stage 3+, 4 & 5 should hold the power. You may want to convert to a rigid disc instead of a spring disc. For flywheels we typically use either the Fidanza or Clutch Masters aluminum flywheel. I use the SPEC 3+ rigid disc with Fidanza flywheel but I'll only be pushing 300WHP with an Alpine supercharger. It's overkill for my application.
Our pull type clutch doesn't hold power very well and has a limit around 500WHP. But there are some strong clutches out there by clutch masters and SPEC that will hold 400+ WHP. The FX500 and SPEC stage 3+, 4 & 5 should hold the power. You may want to convert to a rigid disc instead of a spring disc. For flywheels we typically use either the Fidanza or Clutch Masters aluminum flywheel. I use the SPEC 3+ rigid disc with Fidanza flywheel but I'll only be pushing 300WHP with an Alpine supercharger. It's overkill for my application.