Approx. 200cfm in two bbl talk (measured at 3.0 hg. suck)! when measured at 1.5 hg. suck (like four bbls) its only about 140 cfm in common four bbl talk...thus three would be good for approx 420 total cfm in more commonly heard four bbl talk....The famous 500 cfm holley two bbl is only 350 cfm when spoken in four bbl talk...so no danger of over carburation--heated or not isn't too big a problem with a carb above each intake port- hardly any port length...does this happen in all gears?....could tank be crudded over from disuse or a shop rag sucked into tank?
Great Information and Thank You!! It does happen in all gears and 420 cfm or so doesn't sound like much.
Tank is fairly new and although I don't think there is a shop rag in there I am trying to remember what I did for fittings coming out of the tank. Maybe I have some restriction there.
