i have a 93 civic hb cx with stuck gsr motor with chipped p28 and my fuel pump is a manga flow efi high pressure fuel an fuel pressure regulator but is running bad the pressure 40psi, so it too high? u guys think it too high or i go lower i can?
I have some friends who had a smiliar set up and 40psi is not horrible, but if you can get it down to 30 that would be ideal. my friends that had problems with there were in the 50psi range and had to really tweak it to get it lower.
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