Now, I dont see it mentioned around here too much, but everyone seems to think two stock carbs is a bit much. . .
Are people around here concerned about multiple carbs being too many carburetors ("a bit much") or the total CFM of multiple carburetors being "a bit much"? My post above reflects my belief that too little or too much CFMs affected the performance of the various carburetors I have used with 26!s.
A post on the H.A.M.B suggests that the 235 Corvette Carter YH side-draft carburetors were each rated at about 130 CFM (a lower single-carb CFM compared to a high-pressure 235's single barrel Rochester). The Corvette's three YHs should then result in about 390 CFM, which is just a little higher than what Clifford's calculated for my 261 (over-bored 060", with dual headers).
One potential advantage of the multiple carburetors is a more even distribution of fuel to all 6 cylinders.
After successfully running different dual carburetor set-ups on a 261 (bored to around 270), I planned to try single carburetor set-ups (all rated for 400 CFM or less): Holley AA-1, Rochester 2GC, Zenith used on a GMC 270/302.
The Holley AA-1 (two-barrel with variable jets) seems to be working nicely, so the good results from simpler plumbing will suit my needs/interests for a while.