I always just pull the vacuum line and see if the the valve closes.
What kind of SC and what size pulley? Any other mods to the motor? I'm supposed to run 11-12 psi but run about 10.5 due to mild cams and headers.
Im just trying to eliminate reasons on my im pushing only 6 psi when i should be pushing 9psi
Sent from my iPhone using Tapatalk
Did it used to run 9 psi? How long ago? Did it happen all of a sudden or over a period of time?
How much boost did it run with the 3.6 pulley? Might be belt slip, what kind of belt tensioner do you run?