I think panic has the better trick. He is getting two times what I'm getting. I don't mind sharing the trick. It is simple, With some small hose and a 1/4 " valve you can buy at a hardware store, you pull a little vacum off your float bowl vent. You get a little hesitation on the start, but hardly noticable. I just crack the valve a 1/2 turn or less. It might be differant with others. Make sure to have the air cleaner on when you set it. {I drilled a small hole under mine.} The vacum can be pulled from any outlet. If your not using your vacum wipers, thats perfect. Set it at idle, if you stall you've gone to far. I have mine in my cab. It makes it a little easier to set and fine tune.