MSD
He has to be yanking your chain. First off, the ignition system on LS1/LS6 motors are capable of supporting alot more horsepower then the average person would ever put into the motor.
I still run stock coil packs, and have alot more horsepower then stock. Save your money.
I still run stock coil packs, and have alot more horsepower then stock. Save your money.


