The problem with your shop is that in 0 TO 100.....you set a price for an item...BUT when I visited the shop......U quote much....much higher price!!!!!!
when the is -vacuum it will suck the diaframe to lower down the pressure, full throttle when 0 vacuum most of the stock regulator will rise to 41psi.
how about boost?
will the air pressure push the diaframe down and...