08 6.4, ******d, ARP head studs, H&S mini maxx....here is the issue:
For example: a 12mile trip will result in a crank no start issue with a fuel rail pressure of .3ksi. When it does start the FRP is 4.8 - 5.0 ksi. Shorter trips, 2-3 mi, it will usually start back but not always.
The no start...