22Racer,nitro0619, and RETRO....thanks for the info. So I guess the concensus is that the LSN is about the same as with the long needle but the HSN should come into play a bit more? I am currently flush on the HSN and about 2 1/4 turns in on the LSN. I noticed that most people were recommending that I break it in @ 1.5 turns on the LSN, but the engine was way to fat to even stay running through a tank. Once I went to 2 turns, it idled fine and I could actually continue with the break-in (still had raw fuel and plenty of smoke so I wans'nt worried) I haven't attempted to play with the HSN much, but Ill be running it once more today before I put it on the track tomorrow. Just running it in the yard now with my settings, I am very impressed! It seems to be temping around 245. Hopefully leaning the HSN some more will not increase the temps too much! Again, thanks for your help