right now with the S-trim i am making about 5psi on a bone stock LT1. thats with a 6" crank pulley, and a 3.33" blower pulley. i was trying to see how much boost i would be making with this 2.95" pulley i have here as my paper weight. but all i seem to find is how to calculate the impeller speed which comes out to like 41000. but have no idea how much boost that would give me, and vortech is closed right now. TIA