Bill, what can I say, I hate aluminum engines. I get tired of dealing with melting parts, stripped parts, etc. I am not a fan of 3 and 4 valve per cylinder engines. More to go wrong.
As to the b2200....
I had valve noise, the damn thing leaked a few quarts a week, you couldn't see though the oil smoke when you started it, and the carb was screwy....nobody could get it to work right...it would always run rich, leading to stalling. This led to plug fouling every few weeks.
The rest of the truck was in pretty sad shape too.
What is amusing to me, is I don't really care about the technology anymore, I just want the damn car to go down the road. Simple is good, rebuldable and field repairable is good. I have too much other crap to do without having to deal with the truck that I am trying to do work with being broken at the same time.