Starting and idling problems

I've thrown a gauge on mine for 3-5 minutes at idle and revs and had Zero drop with the corvette filter/reg, it's like 58-60 dead on. I've never tested it longer, and my gauge was under the hood so I can't tell you about PSI with actual load...

I should add that I run a FAST XFI not the factory ecu, but I would think it would be the same...