Going To The Track Saturday

Well things didn't go as good as I hoped for. Something went wrong just not sure what it is yet. I only made two runs, it was crowded as hell. My best was 11.20, 114mph. Normally I run about 121mph. The run started out good
1.70 60ft, 103 mph at the 1/8 then the car just dived, rpm was still climbing but it fell and started getting a vibration. Took it to the pit and engine sounds fine but get a slight vibration in park and of course when I was slowing down. I guess I'll try and figure it out this week. But we had fun.