I just stuck a yz 426 motor in my 400ex. I have a 2" gap between by carb and my rubber intake boot I need to somehow bridge. I want to know machine a sleeve and bolt it to the carb on the back side between the carb and the rubber inlet that hooks to my air intake boot. The rubber inlet on the back side of the carb is ported, the ports lead to 2 jets. If I machine my sleeve with the ports cut into the sleeve wall just like the inlet, will it effect how my motor runs?