6400 is a good shift point.. I did NOT power shift when i went ot the track and i got a 14.55 w/ 2.20 60ft in indiana at US41 dragway. you got the high 60ft with the high trap because you shifted better that your other runs but spun your tires too much at first.... what RPM did you launch at?

 

i have been to the track once. i shifted at like 6900 rpms each time, and never power shifted

 

Just keep trying man, thats all.