If they are the bright blue ones (and only blue) then they are probably the Tokico HP's. Bilsteins are blue/yellow, but I don't think you would be having many problems those, since they are of such high quality. The shocks you have might be blown, but I'm thinking new DR's would help you more for drag racing than a set of shocks. I know the shocks make some difference when launching off the line, but new DR's would make a huge difference. New shocks would improve handling and ride quality, but proably not ET on the strip, so you should go with which ever area you feel needs more improvement.