Plugs read accurately NO matter how its inducted. Dont count out the pump I put 3 Walbro 255's in my GN over 6 yrs. You have to double check that you have a good 12v to the pump...low voltage kills them
Put a piece of steel braided line from your rail gauge to the windshield just to check pressure under driving conditions
Last edited by GNs-r-slow; Sep 18, 2009 at 06:42 PM.