i was wondering if my 60fts would improve with a shorter tire height,88 dakota 3340# 418cid, 9.7 compression, pump gas small block stroker,about 470 hp,driven to the track, 727 reverse pattern lba tranny.ptc 10" converter, flashes 4200, 8 3/4 3.91 posi,stock front /rear shcks with cal/trac bars, m/t drag radial 295/65-15.1st time at track with new motor it ran 7.31@94.5 with a 1.64 60ft.im thinking about going to a m/t drag radial 275/60-15 or a 325-50-15 which are 28"tall instead of 30 like the current 295-65-15?i was thinking the tall tire was hurting my off the line gearing?