vacuum advance for fuel mileage?
my neighbor decided to come over and tell me if i unhook my vac adv that ill get better fuel mileage and wont notice a change in performance. he then also said that he would rebuild the 900 cfm holly that he had on his 496 and that i should buy if from him..............
although i dont believe him in any way i have noticed in a few posts that people dont hook up their vac advance for 1 reason or another so now im curious, is there any advantage to having/not having a vac adv ???