Now, I dont see it mentioned around here too much, but everyone seems to think two stock carbs is a bit much. Lets explore what the conservative old Chevrolet factory boys did on the Corvette automatics. Those 'Vettes ran THREE Sidedraft Carters on their 235s with only PowerGlides and 3.55 gears(sayin' that higher numerical gears make it easier to tolerate overcarburation). I've had that set up on a 261 with happiness, and driven an old '54 stock 'Vette and found it pretty peppy for an old PowerGlide car (almost lay rubber taking off). Those set-ups are now rivalling gold in pricing these days. Now, I bet they might not have been the same size per carb as a sock model B Rochester, but there were a line of them three deep. Those Carter YHs were very primitive and had no vacuum actuated power stage-just linkage that yanked the metering rods into their power stages per throttle position only and all three acted simultaneously (not staged). Go to the Inliners site and check out the technical tips department and look for tips on living with multiple Model B Rochesters-its good reading.