Originally Posted by webmaster

I don't recommend going with a blower pulley unless you are comfortable with a press to install a new pulley. Its not a simple bolt on and the procedure can result in damage to the supercharger if its not done properly. I recommend you take it to someone familiar with the procedure if you change out the blower pulley.

Also, dyno pulls with a/f graphs are highly recommended when going with chip/pulley combination. Too lean a ratio is a bad thing!