I need information
If so I have the same and do not see more than 6-7 PSI. Being that PSI read on a meter is based on pressure due to possitive CFM boost and back pressure within a system, you may never see the 9psi read on the meter, the more efficient the engine is the less PSI you will read due to "less backpressure". I used to read a couple pounds more when I didn't have headers etc.. check you belt for slippage. Also be sure that your PSI lines are tight etc. ANY leak will cause a lower number.

