[ScreaminMachOne]

I think I need to switch than, Im running a 4.00 pulley which I was told was 10-11psi, so switching to 4.15 would put me around 9-10psi, but this is through manifolds and o/r x, I dont know the boost level on the 4.00 pulley til Feb 9 when it goes dyno n tuned..