I have an 85 Iron Head. I am having fuel trouble at 3\\4 throtle it starts cutting out. Could it be not getting enough gas, or could it be somthing else? It has bendx adj. main jet carb on it, rebuilt last summer. Please help.

 

Is this a new problem, or has it been this way since the carb was rebuilt?
You are not running an inline gas filter with the in-tank filter, are you?
Check the float height.
Check the advance mechanism ( I think you still have a mechanical advance, even with an electronic ignition on this last-year IH).