What fuel pressure should i run with my H/I/C 302 N/A combo?

[dderek]

mods all in sig..
i need to set my fuel and timing in the morning. its running really.. really rich. to the point where you can smell it really easy.. idling with the vacuum advance hose on it. it idles at 43 PSI.. not sure if it would read different with the vacuum hose taken off and capped like the bbk instructions said to do to set the pressure... what should i tune it down to? without going too low and hurting the car?

well either way. ill check back for responses in the morning.

hopefully this solves the popping in my heads


thanks
derek

 

[gt90stang]

I datalogged mine with a Tweecer RT and 37# FP was perfect with my C&L 73mm MAF with a 24# tube with a stock A9P PCM tune. The Kamrfs were pretty much perfect at 1.000, so that coupled with 16-18 degrees timing worked really well with my Edelbrock 6037 heads and 24# injectors.

Good Luck, Don

 

[bock]

the fuel pressure guage will give you a different pressure with the vac off.

i had a poping trouble,amke sure you dont have any vaccum leak.Running to lean is a cause to.Also, maybe you should chek your rotor-cap-wire.My trouble was one of the last 3.

 

[dderek]

the fuel pressure guage will give you a different pressure with the vac off.

i had a poping trouble,amke sure you dont have any vaccum leak.Running to lean is a cause to.Also, maybe you should chek your rotor-cap-wire.My trouble was one of the last 3.

nope its not the distributor/wires/cap/rotor. because i had this problem before i did all the fuel and ignition upgrades. and i have it again. afterwards..

im guessing i went from really lean to really rich ..

plus i never even set my ignition timing or fuel pressure, at all. i just bolted all that stuff in there. and it was running pretty damn good for no tuning whatsoever.
i know its bad to run it like that. but ive been working 17 hour days the past week, had no time to do it.

 

[StreetStang37]

I have mine set at 42* with vac. off.