What size carby

Because he asked what “carb” to use, not what efi to use.

OP, are you happy with the way it performs other than being worn out falling in and out of tune?
Is this track only?
Gear ratio?
Its mainly weekend cruises and some drag racing every now and then.
Gear ratio is 3.5. It performs good!! But not sure if it will be better with a different size carby?