dual plane vs single plane?

Have you done any mods to your present manifold and carb?
What are you hoping to achieve by the change?

I like single planes with a smaller cfm carb in a dual purpose car, but you really have to match and tune the carb to get its potential or it will be lazy on the bottom end.
Cam shaft and valve timing play an important part also.
Properly done it will smoke a dual plane hands down everytime.



A daul planes usually splits the carb into 2 sides, sort of a 2bbl per side at WOT, 1bbl at partual.
A single plane allows full carb flow to all cylinders at WOT. 2bbl at partual.