Haynes states 88-93 7.4l only. 26-32psi. It just seems weird that they would single out the 7.4L. But I have never seen it anywhere else. just in case they figured something out no one else did. Do you think lower pressure would cause the IAC to keep higher counts? I would think it would be the opposite. You?That's only for 94 - 95 7.4L which used smaller injectors with the higher pressure. You s/b good with 11 PSI
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