first question:
im running stock 19" rims, my back ones are going out and fast... (18k, since july 06')
whats a good set of rear tires, something that balances performance w/ price, and availability?

second question:
I feel I'm reaching the point to decide whether to stop NA mods and save for FI(vortec or stillen, still deciding) or to keep going in the downward spiral of money in NA. I plan to drive this car into the 100k and I want to keep it dependable. Or just stop just a couple smaller things to lighten up (pullyes, flywheel) and call it a day for engine. (i do want to make this car go faster)

just want some opinions guys. thanx in advanced!