So I dynoed my ride today. 300 WHP. I'm very disappointed with the results I got. She should have made well over 450. So I have the procharger 600b, stock pulley size, MSD BTM new cap/rotor, plugs. Im not sure if I am loosing boost someplace but it was about 4-5 lbs they said. I called Procharger and they said my pulley should make 8-9 and if Im making 4-5lbs then I need to go to a smaller pulley 2.25. I do not have my FMIC set up yet either. Also it's a blow through carb set up. I'm stumped here. Can anyone help me out? How do I perform a leak down test?