Kevin,
I can't help you out with the technical of a multi carb setup, but I can praise your choice!
I am also running a log manifold on my 302 gmc engine. I was told Stromberg 97s flow 150 cfm. Add the 5 I will be running and that is 750 cfm. Over carbed??? Hell yeah! If I can get it running it will have the wow factor.
I believe the calcs for a mildly built 235 would put the flow demands at about 350 cfm. Practically speaking, you might get the best performance out of one of the smaller 4bbl carbs like a 390 cfm holley, but what fun would that be?
Think BIG! It looks cool! Might not be to green, or thrifty, in fact it will probably be down right thirsty.
Good Luck!
John
