Compression Ignition Addict
Join Date: Jan 2008
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17* pumps will flow more. It is not a pressure issue.
The FPR shim is done if your fuel pressure is low. If you have enough fuel pressure already you will see NO GAINS. If you are currently starving your injectors then you will. You have to put a gauge on it to see what your pressure is. Do not just throw a BB in there because everyone on the internet is doing it. JJ
04 F-550 CC 6.0 4x4 cab n chassis 4.88 XLT 193K
Money maker with utility bed.
97 F-350 CC 7.3 ZF-5 4x4 4.10 324K
Moves my stuff around.