4-10s with six speed mani and 35? do i need a pro cal ?
You'll want to run lower than stock pressure. If you don't want the dash to be lit up all the time and want your speedo correct, get the ProCal. If you don't mind the light and can deal w/ the speedo being off, don't bother.
Last edited by tslewisz; Nov 7, 2012 at 11:09 AM. Reason: left out a word - oops



