Went out to my local 1/8th mile track an ran the cobra but only got one run in.......Make a short story short spun really bad then missed the hell out of 3rd badly and cruised through the traps....with all of this still ran 8.1 w/2.15 60'....So with better track conditions and good shifting I know i can pull of somewhere around 7.5 with some 1.7's 60'............