Sup, nubee here. However, long time lurker and proud 5.0 owner. My main question concerns fuel pressure that a mostly stock w/few bolt on car would need. What is the pressure from the factory? Do stock cars respond better to lower or higher pressure? One last question, what should the pressure be WOT, since the vacuum line is connected to FP and more intake vacuum would enrich the mixture, however to what pressure? Ok, one more, Would an aftermarket intake/heads alter the manifold vacuum, therefore, scew up the pressure? Thanks for any replies and I apologize if this is a repeat, however, I haven't seen any threads about this in a while, and the search function is disabled for some unknown reason