I bought one of the cheap D cell powered timing Flaming River timing lights from Summit it works good on my race car with the MSD 7AL2 race box with the proper coil scope wrench up
Which MSD box are you using? If a race 7 type box are you using the tach feed on the end of the box? If not try that next up wrench

Last edited by Cab_Burge; 07/05/22 05:38 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)