[barron64]

Well I have not given up yet. I purchased a OBD II scan gauge and noticed that the ignition timing retards as you accelerate. I saw as ig timing as low as 8 deg BTDC @ 2000 rpms with my foot to the floor. Cruising or light throttle the timing stays up around 30 degrees. Start loading the engine and the timing retards. No wonder it feels lame! Under normal driving conditions the engine performs as if it is running lean during light acceleration. If the MAF sensor is sending the wrong signal to the ecu, resulting in a lean a/f ratio, then the knock sensor may be picking up a lean knock or ping, causing the ignition timing to retard. If this is true, this would explain the poor performance.