The corvette set-up on my .060 over 261 was just ducky year 'round (though Texas dont have too many challanging winter days) it did its job on my daily driver. My particular setup was of course, second hand and had the choke linkage sawn off its rear carb as is typical when used on non-corvette vehicles (firewall rib interference issues on a lot of '49/'54 cars). But as run with only two choke equipped carb start up was as normal as with the stock Model "B". What ever CFM rating at whatever mercury pressure, the number of carbs and and their total cfm rating was right on for an approx 270 motor on the street. They really had a neat "roar" when opened up-sounded alot like a split manifold exhaust only thru the carbs. An approx 400cfm four bbl carb would be good as you would be running off the front bbls (sort of half the size)continueously and only bringing in the rest of the gang upon demand.
A question- what are "variable jets" you dont mean the idle mixture screws do you?
Last edited by edski; 06/25/2013 4:17 PM. Reason: variable jets