what psi?
 

What psi should I keep my slicks at for the best traction?

I'd start at 15psi COLD. That should start you off good. Just remember, get em' good and HOT!! When you're finished with your burnout, you wanna roll out of it, and be able to HEAR the tires stick (Sounds like velcro, psssshhhh).

if you dont have rim screws dont go below 15 psi . do a burnout on clean concrete and adjust the air to get the widest footprint on the pavement, also mke sure it is even all the way across

Notice I said 15psi COLD...because one heated, they'll go up to prolly 17-18psi.