Good day at the track

Thanks guys, I had the motor & 'Glide in a 2200 lb 'Glass Daytona, it ran 9:56 @ sea level. I had the same motor, but with a 727 /Grinner in a back half Duster with cast heads, it ran 10:80's @ sea level. Believe it or not, this car is heavy @ 3070 with out me in it.I weigh 216.When our track became an NHRA track, they re-set the clocks, and The Dayton ran 9:96.My wifes 360 Dart ran 11:90's and now runs 12:30's.Our 10:90 index for Super Street is 11:05, but the clocks are close to 4 hunderths slower based on what people have run at sea level.So that makes my 11:20's, 10:80's, I am good with that, as long as it is consistant.