Any input on Summit ignition box 850602

I got a Summit brand multi spark ignition box SUM-850602.

Heard a rumor it will not work with Mopar. Called Summit and they said no problem.

Has anyone used a Summit box and had any problems or suggestions.

Thanks,

Have a 383 already with orange box electric ignition.
I know the box will prob not make any difference but it was cheap. I just like the idea of multi spark.

Check to see what ballast they reccomend. it may be the difference