Last night I ran my car(6.1 supercharged/ 6-speed) at the track for the first time. I had 28" tall slicks on the car but was having only 1.8-1.9 60' times. I tried launching everywhere between 3000-4200. Every time the engine bogged coming out of the hole. I want to believe that my car has the capability of running mid 11s, but I was only able to get low 12s out of it. Any advise on launching and any shifting techniques that anyone has found to work better would be greatly appreciated.