Here is a pic that gives you an idea of what I am talking about. Ideally where you see the black on the base of the plug you want the black to burn to 3 and 9 o clock. This is referred to as showing heat on the plug. As you can see mine is at something like 4 and 10, but hopefully you get the idea. When you first start and it is rich, there will be no color on the base, as a matter of fact the plug will look brand new and just be wet. It takes a few runs to get color on a new plug, so I usually take 3 runs at the beginning of the day and check plug. If it looks rich close the PJ down a half turn and repeat. You want to do this till you start to show a little color. You don't have to lean it to the point where it is spot on at 3 and 9 for it to run good. As a matter of fact, at the dunes I just tune until just the ground strap turns color. It will run good and I and many others refer to this as fat and happy. When it is rich it will litterally spray raw fuel out of the pipe. You can put your hand behind the pipes and wet your hand. Biggest thing to remember w/alky is untill you start to get the hang of it, make sure it is never on the lean side. A lean alky setup will burn pistons up very quickly. All in all, the power gain is well worth the learning curve. If you have any other questions, post em up, I or the above mentioned will be able to elaborate further.