P Poncho Pete Guest Jul 4, 2008 #1 421 Super Duty factory race engines by Pontiac, 405 H.P. obviously under rated, had two four barrels, what cfm did these Carter factory carburators come with from factory?
421 Super Duty factory race engines by Pontiac, 405 H.P. obviously under rated, had two four barrels, what cfm did these Carter factory carburators come with from factory?
