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speaking of fuel systems and hp limits. I have lt4 injectors and pump and a 32% lobe and I ran out of high side fuel pressure at 700rwhp uncorrected on e85. this was at 9psi on a mustang dyno at 6700rpm. this was a little past the safe limit, my high side fuel pressure dropped to ~1500psi. I do think I could get to 700rwhp safely with a little less boost and a little more rpm but I didn't try it. at 6700rpm the hp had not peeked yet.
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