If you look on the outside of the carb, on the venturi area but ouside, there are some cast in numbers, probably a circle with a 28 or 27 in it. Or you can turn the carb upside down and look at the throttle plates. One is bigger than the other.
I'd say put it on and see how it feels. My feeling is that it may have that extra 'ooomph' for the pedal stomp, but 180 seems high. Or maybe it would bog before getting that 'ooomph'.
Or maybe I've had too many homemade Christmas cookies (orange!) and homemade toffee and I'm delirious with no idea what I'm talking about.......![]()



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