any one useing msd box with a vacuum advance

just looking for ideas,,,i currently use a MSD blower boost box ,,compatable to the msd 6 i would guess,,and a advance control box with a msd dizzy with no vacuum advance,,,

i dont race the car,, i street drive it to local cruise nights and shows,,,im thinking i may be able to increase my gas mileage,,from 4 1/2 too ????? by going to a vacuum advance dizzy,,,just wondering if any one is running a msd advance box with a vacuum dizzy,,before i call msd and see what they have to say,,,,any opinions would be great,or if any one has switced back to a vacuum advance,,,,
Author: admin