Hello, I'm new to the forum but perhaps you guys can help me out. I drive a 1998 Pontiac Grand Prix GTP with ~150,000 on it. I took it out today to run a couple 0-60 just to compare to what it said it could do when it was new. When I ran it I expected high 6s low 7s and ended up clocked at 8.5-8.8. Needless to say I feel like this is extrextremly slow. Has anyone else had this problem or knof possible solutions?