Help my crap 60ft times!

i know this is not really apples to apples but for what its worth my car is about like your except i have a 340 jheads mild clean up same comp cam xs282s, maybe a little more compr. 11.5 in that area, xcel intake with 950hp, 727 with 8" 5600 verta and 4.57 gears with 28/10.5 m/t slicks my cars around 3200 all steel 1 race seat and another stock buck seat it runs mostly 7.50 and 60' in the 1.66 range and im working on my 60' some cause i feel it should 60 better then it is...i have 02/03 ss springs with mp long drag shocks (plan to try some truck shocks soon) pinion angle set at 6 nose down..so ill say you have more init with a little work ..also i have 5" travel in the front end with comp 90/10 shocks also gonna go to the calverts up front i dont drive it on the street much ..also you might want to try a lower shift point i shift at 5800/6000 the cam works to 6500 and your shifteing at 6800 seems kinda high..but my car likes around 5800/6000 no more then 6200 and have been a best of 7.44 with 1.64 60' at 89.9 mph hope this helps out some....