RE: Pumps for 4 strokes
Now that I think about it, it would probably be a cleaner installation with a pump on each inboard engine, from a central tank to the inboard engine and that pump supplies both engines in the left wing for example and the other for the right wing? It's been a REALLY long day at work, maybe I'm just nuts!
I'm sure the Iron Bay regs work well, I just never could get one when I wanted it.