I've seen that when a low deck BB distributor was used in a SB LA motor, all BB distributors are intended to rotate counter clockwise and all LA SB and early Mopar V8 with the distributors in the rear rotate clockwise work scope
I've also seen what Andy is saying on after market ECU shruggy

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