I have a 97 Celebrity 180 with a 4.3 Mercruiser 2bbl, I replaced the factory fuel pump with a Mr Gasket Micro electric fuel pump advertised to deliver 4-7psi. With this pump I had to remove the anti-siphon valve because it wouldnt suck it on through there which I found out the hard way at the ramp. So does anyone know what psi the factory pump delivers?
