2000 Club car sputtering

[robbiescd]

I have a 2000 model Club Car gas that I've been working on. It had sat for about 2 years and the great gas we now have has it gummed all up.

I removed and cleaned the gas tank, replaced all the fuel lines and the fuel pump. I have also replaced the carb.

I put the cart in service mode, floor it, and it runs like a champ. But when I drive it (in forward), it tends to cut out (?). That's the best way I can describe it. It's almost like the rpm limiter is cutting out. Going up hill its not as noticeable, but on flat ground, it cuts in and out.

Wouldn't the rpm limiter cut out even in service mode?

At a loss on this one. Any help or advice would be greatly appreciated.

Thanks

[robbiescd]

Was breather tube on top of carburetor. It was stopped up!