I had a MSD hooked to a flathead Hercules years ago, and it wanted to JUMP out of the boat when I hit the ignition! I also run the MSD on a severely hot rodded 1974 TVR with inline six and three side draft Webbers! That car, by the way, has 8 forward gears (I hooked overdrive to all 4, and of course it's a joke in first, but no joke in 2, 3 and 4). That car is more dangerous sitting in the garage, than a full race Ducati on the high banked ovals, running at top speed, at night, in the rain!
I managed to keep it in one piece throughout my bacelor days!
Paul