that low I did not know you could run 14 or 15 even 16psi on pump gas, When I searched and found that the WGs or not always set the same from the factory I made them the same at 10psi I do now relalize that I am going to have a hard time trying to turn them up in the car! He also told me that because I have them set so low that I could not run that high of boost, It's my first Z motor I built myself. Neil