I have the 6-AL 2 programmable, and have used the craftsman dial back, craftsman non dial back, and the flaming river, they all read exactly the same.


1968 Barracuda 360/727 11.20 @ 121 mph 421 rwhp
1985 Harley Sportster Bobber
2006 Ram 2500 sport - The Cudahlr