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Car will mainly be driven to car shows and cruise ins.

std vol/psi. If you had extensive oiling enlargement mods/large clearances then yes a hi vol/psi but your app it costs a bit of horsepower which is not a deal breaker but stresses the inter shaft hex more which is important. A std Sealed Power unit taken apart/clearance checked/cleaned will work fine

live every 24 hour block of time like it's your last day on earth