Okay, so I got my 2000 gt a month or so ago and I've noticed it isn't as fast as it should be after the new car feeling wore off. I just rolled over 100,000 miles by the way. I had a 3.4 alero prior to this and that thing felt like it had way more nut. I've replaced the factory wires and plugs. The plugs showed that everything was burning efficiently, but definitely had seen a better day. The trans fluid is nice and red, oil is clean as can be (read data on scan tool and it said 20% oil life remaining). The other day at school a classmate and I had to do a drive cycle on a Buick lesabre with a 3800 and that thing had way more pull at 2000 rpm than my GP has. Today I was driving around town and going down a side street I rolled into the throttle. At 2000 rpm it doesn't feel like much, but once it hit 3k, about 20mph it started breaking the tires loose. This is on a resurfaced road where they lay pea gravel onto the wet asphalt and let it harden just to clarify that I wasnt spinning on straight pavement haha. I'm getting around 24-26 mpg all highway with it so it doesn't seem like it's something that affects fuel economy too much. I'm just not sure what to look into. I'm doing engine performance in auto tech right now and have access to a few scantools so my teacher should be cool with me running a few tests with the scantools hooked up if I need to.