I think that is all very good advice. The 2300 is available in 350 and 500cfm sizes, and either one would probably be fine for this application. Definitely avoid the one-barrel.
Tom Wolfe (SHAKER223 on FABO) once bolted a Buick GN turbo onto an almost stock 225 slant six (I think it had a 4bbl intake manifold and carb; otherwise, was bone stock) and boosted it up to 18 pounds of pressure and it ran 12.95 at 104 mph... That was an engine with over 100,000 miles on it which had never had the head removed. Tiny valves and all...
Of course, you won't want to run 18 pounds of boost, but with the water/alky injector, you should be able to get away with 10 pounds on pump gas with no problems, and still go pretty fast... like somewhere in the 13's, probably.
That's a fun ride! :)
