Anyone "reflash" engine ecu?

The chip burner set up from Moates.net is reasonably priced and there are tons of bin files available for downloading. You should be able to find something close to perfect and maybe even better with just a little tweeking.

I've been looking hard at this whole TBI thing for the Wagoneer in our fleet and possibly my beater 76 GMC. As far as fuel injection goes, a TBI unit is akin to being a flintlock to todays machine guns. It's still a good reliable unit with proper maintainence. You won't see huge gains in mpg, but you will see an increase in ease of start up and drivability.