How much is my single carb holding back the engine really?

[bored&stroked]

Like the title says, how much am I giving up running the single carb and 61x cases on my square nose? Not sure if its a 44 or 46 but its an aftermarket Mikuni with no choke from the factory. Motor has 61x cylinder bored to 84mm, porting, 100octane domes [volume wise according to ada] carved into a oem head, protec cdi, and a protec pipe with gasket matched exhaust manifold going into a round nose H2o designs waterbox. Overall very simple and normal type package I'd say.

My wifes ski also has a 760 in it but factory with the high port timing, and its faster everywhere including from a dead stop. Driving me nuts. Granted, she has a B pipe, but otherwise the only real difference is the 62t cases and dual carbs. I think I need that. Don't actually care about top speed, but I want to jump out front from a stop and jump waves higher then her

 

[Quinc]

Probably a difference in impellers? Also tune the carb and your pipe.

 

[Storbeck]

It would be a lot if work but you could do some really interesting testing swapping parts between the skis

 

[TheBuzzard]

like I tell everybody, one carb gives you half the power of 2.
in reality, you get a lot more power out of a properly tuned dual setup.
the bigger the carbs, the more rpm you get.
that's why all the old race boats I picked up always had dual 48 novis, blackjacks or full specs on a 701.
I think 44s are the best dual setup for low end and all around performance.
dual 38s are probably best on 61x cases that aren't properly ported

 

[bernard]

Get a set of 38's or 44's from ebay, they're pretty cheap.

 

[te4250]

There’s something to be said for intake velocity, especially on a two stroke. I’m sure these guys have more experience than me but I don’t think a dual carb setup, especially on a 61x top case is going to make that much difference. I wondered the same thing until my buddy got a round nose with about the same setup as my square minus his dual carb setup, and they’re the same speed in a drag race, I actually pull a bit harder than him in the midrange. Both skis have a head and bpipe and aftermarket prop. Hardly a definitive test but it deterred me from trying to pick up a dual carb setup and 62t case