[ItBites]

I use mine for diagnostics while driving. If it burps in a corner, I can see the pressure drop for an instant and know I uncovered the pickup (and know to leave more gas in the tank). I can also tell the health of my pump (I've killed two). When the pressure doesnt jump right up at the key turn, I know the pump is on its way out... I have a vaccuum reference regulator, so I can also verify at a glance the regulator is responding to different vaccuum conditions. If my data logger starts telling me we are having lean conditions, I can monitor the pressure to verify the lean requires a map change vs the pump getting weak (keeps me from screwing up a perfectly good fuel map to cover for a pump growing weak). That sort of stuff.