LT1 Opti spark question

[LS1Racer]

Do you have a timing pointer on the engine? On the MSD opti at least on the fast xfi crank reference angle is set at 1 degree. I always use the fixed timing setting in the software to verify that the ecu and actual timing on the damper are the same. Looking at the BS3 it seems to be the same procedure except maybe for optispark crank reference.