Thanks for the info. The pic is great, I never new about the Buick set up. What I am about to post ought to spark some controversy. Don't shoot the messenger!
In conversation with someone in the carb business for 30 plus years told me the following:
"When the fuel is atomized in the intake the vapor is sucked into the cylinders in a sequence as the valves open. Because it occurs at different times for each cylinder it does not matter where the carb is located, the fuel/air will be distributed evenly. Unless there is a vacuum issue.
If there is an over carbing risk then progressive is advised.
I never heard this theory before. I agree with you. Admittedly it does make me think.
I did install dual Carters on a modified Fenton to fit my monster 74HP inline. I am waiting over a week for a fuel log from The Hot Rod Company. It looks great! I don't know how to post a pic on this site.