Ok here's where I'm at. It's a 95 got the truck idle issue was the iac plug was bad so replaced. Engin timing was way retarded so I set at 8 degrees big difference. Idles good at 750 rpm runs decent a little surge on hard take off. I'm going to readjust the valves as I hear a few loose ones.
Everyone says there isn't anyone that can program 96 and later to the 350 engine. Thought we had found a place that could write a new program for ecm but didn't work out
Have a friend with a 96 chevy 5 speed manual. He removed the original 305 and built an older 350 30 over and a bigger cam. He kept the original fuel injection from the 305. Engine starts and idles great but has no power. Any ideas where I might go to fix this issue.