Finally got the car to the track for the first time tonight. 528 hemi challenger, 10.3 compression, 630/618 lift, 295 duration, iron heads with some mild clean up work, factory intake opened up, 2 original hemi afb's, 2 1/8 headers, 3.5 collectors to about 18" of pipe to 3.5" aero chambers, 727 ,foot brake, 3500 converter, 4.30 geared dana, 29" tire. I made 3 passes tonight with it. It's 60 foot was 1.607, which I'm fine with since I was only leaving at about 2800rpm. I wanted to get a feel for the car a bit before I leave harder. It pulls well up to about the 1/8th and falls on its face at about the 1000 foot. I'm in 3rd before the 1/8. 1st and 2nd pull strong to about 6500 where I was shifting at. It doesn't break up or miss or anything, it just falls flat on it's face and stops pulling. My plugs look really good. Where do I start? I'm at a loss here. 7.4 at 92mph 1/8 and 11.95 at 96 mph was my best 1/4 of the 3 passes.