UPDATE: OK, we're making progress guys! I pulled the 02 sensor, took it out and ran it hard through the gears.... it actually would redline now if I allowed it to!!!! It had WAYYYYYY more power than before, so I guess either my cat is clogged or the 02 is faulty? now where's my voltmeter

96 Contour GL 2.0L MTX with Early SE 7 spoke wheels, SE sideskirts, Koni Sport Kit 70 Mustang Sportsroof with mild 351W and '01 Mustang GT wheels