Originally Posted by bryanm

The air bleeds were opened up on the dyno when we were trying to get the a/f mixture that we wanted so I knew exactly what I was trying to accomplish. It is a sbf 408ci, mighty demon 800 carb, afr 205cc heads, victor jr intake, 680 lift roller cam, 266 duration at 050, 12:1 compression. I took it to the track this weekend and it is falling on its face as soon as I let off the brake and then it comes out of it and really hauls ass. It ran great on the dyno and I have never had any problems with the carb before. I also noticed that the fron float bowl keeps filling up even after I adjust it. I have another carb I borrowed that I am going to put on and try. I just dont know what else it could be.