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Author Topic: what should my fuel pressure be 90cobraclone ¯ Member # 6354 posted                              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 ½” 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 -------------------- vortech supercharged Posts: 66 | From: santa rosa | Registered: Jan 2006  |  : BlackNGold CaliforniaFords.com Moderator Member # 655 posted                              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... -------------------- -SLOWER TRAFFIC KEEP RIGHT- Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001  |  : SONIC LX ¯ Member # 5850 posted                              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 -------------------- 87 LX ex 4cyl now TFS H/C/I 79 Pace car 5.0/C4 5 lug Posts: 349 | From: Healdsburg | Registered: Jul 2005  |  :

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