Ebay GT45 + 5.9 Magnum + E85 blow thru

myduster360 said
What about the filter between the sump and the pump?

Where's the boost ref line connected?
Is there anything connected with it? such as Boost controller?

Can you manually force the regulator to say 60-70psi and have it hold? or did you do that already?

Checked and cleaned the other filter, it looks good. Boost ref line comes from the hat and I tested it already. While idling and adding compressed air, fuel psi climbs and holds.

I'm tempted to throw my old Walbro 255 back on and test. Thanks again.