Alright, so when I run that calculation I get 260 CFM for my L6 250 ci motor. So either a 300 cfm 2 barrel or a 600 cfm 4 barrel should work assuming you accept that the 4 barrel will only use the primary during normal driving. Which ends up at the same question -- is the 2 barrel a better choice or is the 4 barrel the better chouice?
