This is topic what should my fuel pressure be in forum Tech Talk at Northern California Ford Owners  .


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Posted by 90cobraclone (Member # 6354) on :
 
302 bored .020
GT-40 heads (93 svo heads)
Comp Cams .544/.544 lift cam
Comp Cam high lift valve springs
Crane 1.7 roller rockers
Ford Motorsport 24# injectors
Cobra upper & lower plenum
Power product 70mm throttle body
C&L 76 mm mass air for 24# injectors
MAC 1 5/8 equal length shorty headers
2 ˝” X-pipe with 2 chamber flows
Smog pump delete
MSD 6AL ignition
MSD 8.5mm wires
Hypertech power chip
MAC under drive pullies
Optima red top relocated in trunk
130 amp alternator
16” electric fan
 
Posted by BlackNGold (Member # 655) on :
 
Start with a baseline, but for all the parts you have listed the only way is to test and tune...You forgot to mention your base timming, that also plays a big role in fuel pressure....

What fuel pressure are you running now?...Are you detonating?...

If you're not sure run rich, it's better safe than sorry...
 
Posted by SONIC LX (Member # 5850) on :
 
ive had a similar set up and with the timing at 15 degrees i had the fuel pres @38 psi with vacumme off and it ran best, that was after numerous test and tunes
 




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