Bax,,, my questions are,

1) shouldn't I expect more power from my OS Hyper 50 with a 60B carb ??

2) after all the extra needle on the 60B will allow more fuel to the motor,, right ??

I had 2 OS Hyper 50s,,, the first one had the 60B on it,, the 2nd one had the stock 60L,,, both motors used the exact same MP2, same fuel, same everything,,

the motor with the 60B had quite a bit more power !!

Jim