I am running a 5 gph nozzle with a 120 psi pump, on point of 5 psi and a 3.5" pulley. usually a 20-30% methanol 70-80% water (more methanol in winter for windshield use) just to boost the octane at high boost. I am running into the lower, unused vacume port on the throttlebody instead of running a spacer.