Can someone explain to me how to adjust it. If the screw is turned all the way in is it at its lowest pressure, and does turning it out increase pressure?
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93 LX, 5 spd, Black, AFR 165'S, E-303, Performer 5.0 manifold, BBK O/R H-pipe, american thunder catback, bbk unequals, 3.73's, Subframe Connectors, MM L Control Arms, Aluminum Driveshaft, C&L 76MM MAF, 24lb ers, bbk 70mm tb
Best thing to do would be to get a fuel pressure gauge and then you will know for sure, and you can actually set it not just guess, if that is what you are trying to do.
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1988 Mustang GT - 331, hand ported Twisted Wedge heads, TFS Stage 2 cam, R-Series intake, 1 3/4 long tubes, dual 3" exhaust, tko 600, Zex 100 shot, ect.
357 rwhp/ 361 rwtq on motor
428 rwhp/ 484 rwtq on 100 shot
12.48 @ 111 mph on motor (2200ft + elevation)
11.7 @ 120 mph on 100 shot (2200ft + elevation)
i cant believe your fuel pressure gauge only goes to 60psi mine goes to like 125 or 135 and i have a cheap gauge i think the bbk regulators go to 35psi to 70psi
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1989 Mustang LX 5.0 Edelbrock Performer 5.0 EFI Intake Msd 6AL MSD blaster coil March Performance under drive pullys a/c ELIMINATOR smog ELIMINATOR cam bbk cold air bbk70mm THROTTLE BODY 73mm mass air ford raceing headers and H pipe 40 flowmasters T 5 TREMEC 373 9' ford rear end
how hard are the regulators to put in? i just got a holley one for my 89 5.0 but havnt even had the chance to look at it to see what it would be like changing it.
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Lance
1989 Ford Mustang GT 302 Five Speed
Stock Motor
its not hard to put on its just trickey to get to the bolts if i remaber it like to bolts and the vac line that pulls right off
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1989 Mustang LX 5.0 Edelbrock Performer 5.0 EFI Intake Msd 6AL MSD blaster coil March Performance under drive pullys a/c ELIMINATOR smog ELIMINATOR cam bbk cold air bbk70mm THROTTLE BODY 73mm mass air ford raceing headers and H pipe 40 flowmasters T 5 TREMEC 373 9' ford rear end
BBK fuel pressure regulator 
