[FPV GTHO]

All 3 you suggested, more power/less weight/better technique will make a difference, so which one do you want to spend the money on?

I got down to a 13.98 in my XT but it ran 14.7 as it came off the street, it now runs 14.9 straight off the street with a T5.

Those 7 tenths missing were a combination of weight, tyre and suspension setup. I swapped my 275/35/18 tyres for some 225/50/16 chasers, removed my passenger seats, spare wheel and front swaybar, then also removed my passenger headlight at the track.