I think George is pushing the electric pump for a circ pump. I'm pretty sure he'd tell you to go with a crank mounted raw water pump.
I'd tend to agree. Crank mounted pumps mean one less belt to deal with either when it breaks or to remove if the other belt(s) break. makes for a clean installation, and the impellors are easy (well, sort of) to get to since they front-load into the pump.
Don
'01 22 Classic, 502/B1
And a bunch of other stuff
"If everything seems under control, you're just not going fast enough" - Mario Andretti