Hi,
I run the blue thunder dual plane ,dual quad intake, got it in L.A. @ ford power products. Works good, I run edelbrock performer 600 cfm carbs,but for your larger engine I would run 750 carbs, as with the dual plane any one cylinder only sees the left or right side of the carbs at any one time, so even at WOT I only have 600 cfm feeding any one cylinder.
Perry.
