I have never messed with this feature before an just got the base an wot where I think it need's to be. Car runs fine an I have no problems other then my WOT is maxed out @ 14%. An I think I may need more fuel in the extreme chip added. I made a run before with the car went 11:00 @124 with 23 lbs an my 02's were @ 746.. Car has double pumper's. Siemen 72's racetronix harness going to main pump an 12 volts going to a hobb's for the 2nd pump to come on @ 15lbs.. I have checked the hobb's with a air hose an PSI comes up with 15 lbs psi. I think I may have got off my orgininal question a lil bit.