Unless you are a regular at the track save your money on a line lock. A line lock is a valve that is actuated by a switch inside your car that allows you to push your brake pedal, hit the line lock switch, and then take your foot off of the brake pedal. By pushing the switch you make the valve close so that pressure is held only in the front brakes so you don't smoke your rear brakes at all.
You didn't mention whether your car was a manual or automatic. If it's auto, its more simple. Put your tranny in #1 and put a foot on the brake just enough to hold you there while pressing the gas pedal at the same time. They will start to smoke without a problem. If you have them spinning fast enough and have the revs to play with, then try shifting into second. If you have stock gearing or your tires are too sticky, you'll probably hear your motor not liking this much. If you have a manual tranny you'll have to dump the clutch to get the wheels spinning. Your car will want to take off so you'll have to be quick about getting your foot on the brake. Keep the revs up and you're doing it. If you're going to do a 2nd gear burnout in a maunal, be sure that you have the gearing to do it. 3.27's and lower aren't something that you want to do this with. Do the 2nd gear burnout just like you did with it in 1st gear, if you have the rear end gears for it, it might bog down a bit at first, but it will pick up quickly. In either maual or auto make sure that you power out of each of the burnouts. Meaning, don't do your burnout and then just push in the clutch or take your foot off the gas. Your tires will be really sticky even with all-season tires, letting off the gas will make them go from spinning fast to just stopping which is going to trash your drivetrain. Hope this helps. I guess I'm to blame for the black marks that this guy is going to leave all over the streets now :dunno: Be SAFE AND SMART ABOUT IT!!