I Think what you are asking is what size carb, WEBER/Delorto, Jet sizes, venturi size???
Only you can find this info by inspecting what you got.
Jump in and tell us what you got and you will have more help that you ever thought.
Something like WEBER, 44 IDF 36MM venturi, 60 idle, 135 main gas, f11 emulsion, 200 air correct.
Engine size/displacement, Cam profile would help, exhaust design too.
