As my post states I did test it before I installed the rail and had no leakage but the pressure may not have been high enough without the engine on to cause a leak past the seals. As this was the second go around I did EVERYTHING by the book and it still hesitates and smokes. Once RPMS rise is smooths out and runs better telling me it is using that extra fuel that is leaking toward combustion at the higher revs that is cant when idling and below ~ 2k RPM