This is probably going to sound stupid but please remember my previous experience has been with hondas. You are saying fpr first then rail then return line? On a honda the fpr is after the rail to keep the rail pressure constant ensuring consistant flow to each injector. If you go to the fpr first there is a chance for pressure drop after each injector leaving the last injector possibly recieving less pressure. Maybe I just don't understand how the system works exactly. Let me know what you guys think. Thanks,
JKP
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