You'd want a pump w no more than ~5psi or so at idle when pressure is the highest as to not overpower th needle/seats as the least amt of fuel is being consumed at that point and at least several psi at the end of the strip (or street
) for no starvation/lean out. 36-38 total w vac adv disconnected if used & hose plugged (see I remembered!) and initial anywhere from ~10-20 depending on the cam/eng but the inital gets decided upon/set 1st then the slots get shortened to maintain the required total then the springs then the vac adv if used. I have an ECU you can borrow
. Sorry couldn't resist