Car not running what is should, need help.

I checked the advance with my timming light b/4 I made my first pass, it was at 36 degrees. Seems strange to me, it feels strong off idle no hesitation. On the street it will instantly break the tires loose until I let off to get it to hook. It also pulls thru 3rd gear, I can watch the tach and it is still pulling thru the traps. I am going to recheck the timing and make sure the balancer did not slip or somthing.