Ok just checking all angles ..it drops to zero fast after engine is off... I still think pressure is dropping ...I never noticed my supercharged 370 changing this much ...I went to a cruise in today ...popped the hood pressure was around 37 ..was very hot ...I let it just sit and idle for about 5 minutes ...pressure came back up to 40....cold idle is 45 ....still need to verify pressure gauge but I feel it’s is fluctuation
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