How to prepare my car for the dragstrip?

I know it is good advice that I should get started drag racing with a slower car, so yeah, I'd better do the first few runs with my old Mercedes 420SEL.

But this is just to let you know that I've already discovered how you can't steer when you're popping a wheelie, and I've already experienced that involuntary anal sphincter release you're referring to. I'll spare you all the gory details. Suffice it to say, I've learned my lesson: feather the throttle off the line!

Thanks for all the help and advice.