want to get into 13's!!

I have to totally agree with Skyman, those are fairly inexpensive options, will give you LOTS of bang for the buck and from what i've seen, many people with very similar mods will easily go 13's. and like sky said your tires might not hook, so all i can suggest is like drag radial tires like BFgoodrich Drag radials (i assume you have the 10 hole wheels). Good luck and have fun!