I run the Champion C59CX in mine,was told by Indy the 59 would be better than the 57 in my engine on alcohol. Next time I order I think I will get a set of each 57 & 59 to try.
I have not run the Autolite's yet but the cross over from the C59CX is AR3933.


"To Be The Man'You Have Got To Beat The Man" "T/D and Pro-Bracket Racer"