TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Fuel P.S.I

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Old 07-01-2006, 11:47 AM
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Car: 1988 IROC-Z
Engine: 305 tbi
Transmission: t56
Fuel P.S.I

MAY sound like a stupid question, but I dont see any check valve for checking fuel pressure. I also have a gauge id like to mount permanently to check pressure at the reg. Can annyone give me some guidence?

Thanks in advance!
Old 07-01-2006, 02:16 PM
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Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
eBay Motors: GM TBI TPI Fuel Pressure gauge Kit 1984-95 GM 305 350 (item 8053495105 end time Jul-02-06 16:57:29 PDT)
Old 07-08-2006, 03:04 PM
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Car: 1991 Z28 - 2000 Z28
Engine: L98 - LS4
Transmission: 700R4 - 4L60E
Axle/Gears: 3.23's - 3.73's
I'm having the same issue on my 88' Chevy truck, does anyone sell something I can stick inline between the TBI unit and supply fuel line? I'd like to have a permanent port I can stick my test guage on.
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