Well i had a few issues wiring these gauges, but i finally figured them out. The diagram they give you, is pretty bad. But i have a question, when i rev the engine up to 5k it says im in boost. Im wondering if this is normal for these gauges. Its running straight to the nipple where you should be tapping into. Just doesnt make sense on why when i rev it its like 5psi to sometimes 10psi. But when idling its has decent vac. Im new to the whole stepper motor gauges.

Any insight on this would be nice.