Well I just replaced my ECU chip and the OBD II computer with OBD 1 and performance chip. Advantage is more hp and less sensors to deal with like some guy about his O2 sensor. Disadvantage is no rev limiter. So if I go to high and miss a gear it might go Ka BOOM! Done! So a MSD Ingition with rev limiter adjuster should take care of that. Then no more disadvantages just advantages.
