OK, I'm sitting here looking at it.
how do you tune it?
I see the large allen screw in the center and a small twist type valve on the side. what is that? what does turnig it do?
PM Gvtec. He has one and should know quite a bit about it. One is for the actual fuel pressure, and the other is for the rise rate (what you want the fuel pressure bumped up per PSI, for instance 5:1, 4:1, etc.)
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