Outer Limits 4x4 Board

i have a standard 1991 ford mav with snorkel and a 2 1/2 in exhausts will screwing the pump up a bit will it make any differance
also my oil pressure cold 50psi hot at idle 30psi at 100kph in fifth gear is 60psi

Oil pressure is sweet. Giving her more fuel will help up to a point but the engine can only burn so much fuel before it runs out of air. Thats why a turbo works so well as it gives the engine more air than it can suck itself.