ok i have an 89 5.0, cobra upper/lower intake, 65mm tb., bbk cold air induction, e-303 cam, ac delete, smog pump delete, cobra rad, flex fan, exhaust, gears, i have a stock fuel pump right now and 19 lb injectors. i will be upgrading in the future to a 190lph.

my ? i am installing a bbk fuel pressure regulator and gauge and i need to know what to set the pressure at. please help, thanks

 

stock on my 88 is 38 psi. I put on adjustable regulator and increased it to 44 psi at WOT and it seems to be doing fine at this setting.

 

Mine is set at 40psi with E cam, 11 to 1 comp., Custom chip, 351w heads, headers.