Thank you for the recommendation! I will check that box out. I told my brother about this and he agrees this is a good box cause I could still use the stock distributor which has vacuum advance, and could eliminate the ballast resistor. He is somewhat familiar with these little roots blowers as well.
Thank you! Still collecting some parts I need for the swap, when time and money allow.
I came across some pictures I found online of a fuel injection system B&M once sold back in the mid '80's specifically for these blowers which I would love to have, although VERY rare and hard to find, of course. :)