Having a problem with my AAR. It fires up fine and goes to fast idle. Blip the gas and the idle drop down like it should. Begin to drive it all is well. But after a minute or two it runs terrible. Idles crappy, feels like it wants to die, and at low speed it kind of spits and sputters……. Not like its running out of gas but like its running too rich. This happens from 0 mph up to maybe 40 or so. Once the rpm’s are up, it runs great, just the lower end is the problem. All I have done is checked the float level and the idle mixture screws. The rear float was a bit high but the others were fine.