Throttle Body Sizing

[Orin Harding]

A single 40mm TB sounds alittle restrictive for your application. But you
won't flow over 500cfm, like you calculate. I don't know enough about MGs
to recommend a specific size TB. Just as a comparison, my 5.7l V8 uses
twin 48mm TBs w/ 5800rpm redline.

Markus,
I'm going to try a twin 40 mm throttle body which should flow 400+ CFM.  That 
should be close to the same flow as the twin SU HS-4 (1.5") carbs that were 
used on the early MGB's.

Orin