Your fuel pressure is fine I run 38 psi with 24# injectors are my heads are as big as yours.
38 psi with 24# injectors will easily support 400rwhp.
I also have big heads on a 302 and I lost alot of low end but it screams in the upper rpm's.
Your results are normal.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
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