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
The '96 and '97 PCMs are a little bit harder to find tuners for than '98+, but there are absolutely people out there who will tune them. Black Bear Performance can do '96 and '97 PCMs for sure, they tuned my '97.
https://www.blackbearperformance.com/
The tune needs to be addressed, that engine is never going to run right with the stock 305 tune.