Fuel pressure requirements?

What fuel pressure does the HO engine require?
I'm running an different tank than stock and will need
a new fuel pump.

IIRC, (I'd have to look at my notes to make sure the year break is right)
97+ would be 49.5psi
96- would be 31- 39 psi

I know my 97 is ~49.5psi. I'm using a Mallory 4060FI pump and 4305M regulator, yet to plumb and start it though.

looked it up for pre obdII and obdII as the fuel tank/pump styles changed then. 96 is a bastard year, i could look up the specs for that too if ya need



for a 97
Fuel Pressure


Engine at curb idle 338 ±14 kPa (49.2 ±5 psi)
Fuel Pressure Drop (pump not engaged) Not fall below 30 psi for 5 minutes

for a 95
Fuel Pressure


Key On, engine running 214 kPa (31 psi)
Regualtor vacuum hose disconnected 269-283 kPa (39-41 psi)