Old Timer Question

Just recently got to the track myself for the first time in almost 20 yrs. You will love it. A 9.85 1/8 time should put you somewhere in the low 70's for MPH. If your 273 is stock and in good tune depending on tire size & axle ratio I think Mid 10's with mid 60's for MPH would be more realistic. Here is a web site with a good calculator. The multiplier or devider for 1/8 to 1/4 mile is 1.56. http://www.richmondgear.com/01calculators.html

Good luck & enjoy the track
Oldschoolcuda