I am curious about this dist. Did the rebuilder install that one? If its not Marine approved, I dont understand why they'd do that or did you buy it and then discover that? Not approved due to spark issues?
There's a longer story here...but...the machine shop that rebuilt the motor for me does marine engines for 'manhood compensation' boats on a regular basis. The mechanic who rebuilt my engine has a twin engine Fountain and he uses the MDS Streetfire Dist that you see in mine. He 'upgraded' me for free.
I suspected it wasn't when I brought it home, but soon after, confirmed it wasn't. They run them in their race boats as well, they pretty much don't care if they blow up I guess. So...I'll get mine installed & running, then swap it out this spring. I've seen the engine run when it was on their stand being timed. If I have problems getting it running this spring, I'll know its something I did...most likely electrical or fuel related.
Its one of those deals where I'm sure its fine 99.9% of the time...but that one time you have fuel vapor in the engine bay...and its good night.