Need correct crank pulley!!!! Any ideas?

All my rally cars use 1 v-belt to run water pump and alternator. Smaller water pumps, but the alternators put out 80-130 amps to run up to 6 rally lights at night, plus the normal electrical loads. Standard stock pulleys, and 6500 RPM on 2 engines and 8000 RPM on the other. Never threw a belt.

BTW, OP, throw those inside-cogged v-belts into the trash right now. They are notorious for slipping but not making a squeal, so they can be doing very little to turn the alternator and water pump, and you will never hear the slippage and never know it. I have been bitten twice by them in 2 completely different applications. I'd recommend NAPA Premium belts.