First time at the track!

So I just recently took my stang out to Firebird Raceway here in Phoenix. It was a blast and I'm now hooked but I was a little disappointed with my times at the track. Here was my best time of the night:

13.9 @ 103.7 mph/ 2.1 60' (very traction limited!)

My question is what kind of tires should I get for the track? My tires right now are just not cutting it. If I launch at anything above 2500 my tires light up like crazy. I have 275/40 19 inch Pirelli PZero Rosso's out back and they corner like a dream but are terrible for traction off the line.

Here are my performance mods: BBK CAI w/ 91 oct tune, FRPP 4.10s, JBA shorty headers, Bassani catted x-pipe, muffler delete, BMR LCA's, Hurst short throw

I'm hoping with some better tires and a little track time I should be able to cut that down to very low 13's. What do you guys think? Any tips? I'm mostly concerned about how to set up my tires out back. I plan on just getting some cheap rims and buying some MT ET streets or something. Any advice would be great!!

I think I actually have a friend with an old set of rims off his mustang. That sounds like a great idea. I appreciate the advice! How much do the BFG's normally go for and where do you recommend getting 'em?