New carbs??..

The takeaway from the article posted, ignoring the CFM calculation formula, which I agree upon being incorrect. But the reason why TR's work best with 1:1 linkage.
"Some degree of separation between the front (#1, 2, 3 & 4) and rear (#5, 6, 7 & 8) cylinder groups occurs, due to the relatively small area of the plenum between the 2 carburetor mounting points."