[ianb]

i just got a FP gauge mounted on the rail and now i have a question..with the vacum line off the adjustable fuel pressure regulator the gauge reads 46 lbs and with it connected its 40 lbs..from what ive been reading at idle with it off it should be more around 38-40 right ? so that would make it like 32-34 connected right ?

my car def seems to be running rich even with cats i can still smell it, hmm wonder if leaning it out a bit will fix it.

anyways i just wanna make i have this completely correct before i lean it out..thanks

[EagleAutosports]

That's about right. Set it without the line to 40 psi and you should have around 32-34 psi. Try it and see how it runs.

[ianb]

well i set it to 40psi vac off and 32 vac on. and i will say the car def feels smoother and runs better..hmm i wonder if this will help me on my failing emmisions prob hmmmm

[87stang 5.0]

yes, if would help alot you can really lean the mixture down,but not to much that you will melt your pistons, its kinda like the old days where you could tune down a carb, you just have to mess with the pressure and see which setting works the best for your car