I have been trying to track down someone that has purchased this Hypertech chip for a 1989 Suburban with the TBI 350. I was contemplating the purchase but could not find any hard evidence to whether or not it is worth it. It seems to be the only computer upgrade available for that date range. I stumbled on to this forum and it looks like there are some pretty knowledgable people here so if there is anyone that can help me with a little insight into this computer chip it would be greatly appreciated.
Thanks