I have a 93 S10 with a 4.3 TBI and 4L6OE tranny.I would like to know what my options are for programming.I am clueless to how to approach this with this truck.If there is a way to swap out my ecm for a newer one that can be flash programmed I would love to know how to do that to.I am getting ready to install vortec heads,new intake,cam.larger throttle body,larger injectors,and a few more odds and ends.Im also swapping from a 3.42 gears to 4.10's.Any help would be greatly appreciated.