Sky:
My best friend at work has a 2 door 98 GTP. he has a 3.5 pully(stock is 3.8-9) and a home-made CAI. He runs consistent 14.1's at 99mph, with his best 60' time a 2.005 on stock tires! Just put in a DHP computer for $300, & other GTPs have been getting .3 & 3mph with same basic mods, so he's easily a 13.8 car with $600 in mods & stock tires. I have given him smack when his car was stock(15.1 1/4 times) but not anymore. I have a slight edge on him as we work out our traction issues(his last run at the was the 1st since his DHP, & he couldn't get it to hook & spun his way to 14.3-5's all night long). A guy with about $2500 in mods has gotten a couple 13.28's in the 1/4!!! It is a very cool car & I wanted to talk my wife into a 4door one(they're jsut as fast as the 2doors)but she found her, gulp, SUV too soon(but at least it's a 5.0 Explorer!
A great choice for around$10K-$12K for a '98.
Good luck! If you need any other specifc advice, send me a PM.
Later!
Sean