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What pressure should I set my car at? I'm running stock injectors and chip.I have a Walbro 307 pump,adjustable reg. and hot wire kit. Thxs

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Originally posted by turbohitman:
What pressure should I set my car at? I'm running stock injectors and chip.I have a Walbro 307 pump,adjustable reg. and hot wire kit. Thxs
I would set it whereever the stock fuel pressure reg is set, until you get a chip that tells you otherwise.

With my set-up, which is probably common, I run 46 psi with the vacuum line off which should be about 44 psi with the line on. Then check to make sure that the pressure goes up linearly with boost. (i.e. 44 fuel psi @ idle should be 64 fuel psi with 20 psi boost)
 
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