I need a 136 track. I guess that will help.Carl, I switched to a 2000 Thundercat, with a 280hp Hooper motor. I have only made a few runs at home track. I did goto Vegas for the Division 7 et finals, Had a few problems, but one of my runs it flat flew down the track. Not quite sure what it would have run, but at a 1000' I was a 8.33, I hit brakes hard at mph block and ran a 10.17. I have a lot to learn on this sled, it has a lot of very differnt stuff then I have ever saw.