i have an evolution engine. i have had a problem getting it to run at high rpm. it runs good at idle. when i power up it bogs down and stalls. the fuel is good. i can see small air bubbles in the fuel line going to the remote needle and from the needle to the carb. i checked the lines and there are no cuts. i i reseated the carb and put all new lines and those little clamps on them. i have not run it yet since i replaced the lines. i am going to do it during lunch. does anyone know if this is a common thing and if so what is the problem usually? i will post again after i run it.