10 psi is way too low. The tires are probably cupping. They are stiff sidewall low aspect ratio and that doesnt work like a wrinkle wall slick that runs around 10 psi. If you have a 245 45 16 or something similar, you will need more pressure in them. not so much they get really hard, but enough that the entire contact patch is actually touching the ground. If I can get 1.6-1.8 60fts with a 9" wide BFG DR with 430rwtq@ 2500 rpm and a completely stock suspension, you should be able to hook alot better than you are. That was leaving off idle with either a 2200 stall or a 3000 stall. Lower pressure isnt always better, Start around 35 and do some 3500 rpm dumps somewhere away from traffic. Look at the marks and lower the pressure untill the marks show even rubber across the widest area. You might find they hook best around 26-28psi.

The BFG DRs never got under 16 psi and they are a 295 65 15, usually I ran them around 19-22 psi depending on the track. Also more air pressure means less rolling resitance an the big end, and it wont be wandering all over the track cuz the tires are underinflated. Also whatever you do, if you want to race it dont lower the car, at least not in the rear and make the front end as loose as you can and still drive it.