Mike, I just run a bigger pulley on the Alternator that way when you spin the motor up to 7500 rpm it does not fry itself:) I did have an issue with my firebird alternator but that is because it had an electric fuel pump, vac pump, elect water pump, two elect fans, msd so it was way overloaded...actually melted the inside See you at Thunderhill Bob Benson Mike, I just run a bigger pulley on the Alternator that way when you spin the motor up to 7500 rpm it does not fry itself:) I did have an issue with my firebird alternator but that is because it had an electric fuel pump, vac pump, elect water pump, two elect fans, msd so it was way overloaded...actually melted the inside See you at Thunderhill Bob Benson