just curious i see alot of flatheads with 2 carbs verses 3 carbs, are the three carbs too much for the flatty? i would have thought that the set up would have ran off the center carb till you opened the others up therefore only utilizing the others at a higher rpm where as your using both carbs to run off of on a 2x2 set up. i know you jet them (2x2) to run efficiently in this manner but it would seem that a 3x2 set up would be more efficient and produce more power by being ran progressive. i'm putting together a 8ba 51 model with alum heads a 400 jr cam with a 3x2 set up(strombergs). any info on this set up would be helpful or just tell me i'm screwing up. thanks hot rust
I run 2x2 , straight, no progressive linkage , the slig shot by Edelbrock was to raise Rpm , but not so much as to add more CFM's I have read several places that Flathead where under CFM right from the Ford factory , A 4x2 would be better then 3x2 There's more to why 2x2 & 4x2 over 3x2 , but honestly Me I would not know how to explain it in writhing, but you can see it on a dyno & with 6 egt's Pretty sure someone else will comment maybe they will have a better explanation, cap off and dummy center cab , run the end Carbs straight ,
Unless your flathead is built up, you only need one carb. Anything more is over kill. Most rodders add a second carb on a stock motor for looks and are nice to look at. If that is what you want then go for it. Mine is a stock motor and will stay this way so I have no need to for a duel or triple set up. I no longer street race but I do spin my rear tires once in a while.
If you add another carb to a stock Flatty you will see & feel the difference in power and get up & go over the one carb, Or install a bigger carb overstock "" CFMs""
In high school I put 3X2 on my stock worn out 40 flatty. I don't think it would have mattered if I had 1,2,3,4,6. It was still a dog but it looked cool.
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