What is fuel pressure spec on 2001 7.4 454 mpi Mag?
08-07-2016, 07:32 PM
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What is fuel pressure spec on 2001 7.4 454 mpi Mag?
Hi. I'm looking for fuel pressure spec. I have Twin 2001 454 mags. MPI with only one electric pump mounted on side of engines. This is a single line system with no regulator. I have only 26psi on both motors at idle. Seems way low to me. In the automotive world we like to see 40 plus on a mpi motor. Boat seems lean to me and lacking power. Thanks
