I'm not sure which brand and model ECU to use, sorry confused
I buy all the MSD older race boxes like the MSD404b,404C, MSD7, MSD7C and so on to use on my street and strip builds along with the proper Mallory or MSD race coils up
I've had one MSD7 die on me while racing years ago on my old pump gas Duster whiney
Only one luck

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