I don't know anyone off hand doing those. However as I recall the 1227747 is a plug in replacement, but you lose the IAT. If that is appealing then use the Programming 101 info. Doc | What program will I need to reprogram a 89 Camaro eprom, and is the 89 and 91 the same eprom and data for a 305 TBI, auto.? | Thanks | Jeffrey Scott | JWS6367 at mailcity.com