wider tyres will definantly help
i have rock hard 235 on the back, that why i got 70,000km out of them there being replaced in February so i might get 80,000km out of them
tyre pressure helps i usually drop em to 20-22psi and do a little burnout. just went through my time slips my best 60 foot time 2.132 sec but i missed a gear and ran a 14.12. i haven't been down since i fitted the diff lock kit which also helps just ask rev210 and rob77.
wider grippier tyres will help.
also try and get in the left lane at the drags its the faster one, just always seems to throw up the better times.