I am continuing this 194 Straight 6 build and did some math to calculate the carb i should be running.
1) My engine is bored .030 over and running some major cam (don't have details yet).
2) By my math the displacement is now 198ish or so
3) Using the formula (MAX RPM X Displacment / 3456) i get the target carb of 315ish.

I will be using a 4 BBL carb and an offenhauser so i believe that I should be buying a 330-375 CFM carb. Since there are not many square bore made in that size, the smallest i can find is the Holley 390. Specs below...

Holley 0-8007 - Holley Model 4160 Adjustable Float Carburetors
* Carburetor, Model 4160, 390 cfm, 4-Barrel, Electric Choke, Single Inlet, Dichromate,

thoughts? Anybody run this carb on a 6? results?