Are a 1993 351w compatible with a 1996 351w

What is your question?

I have a 1993 f250. I swapped a 1996 351w out of an f150. And it doesn’t run right. It’s acting like it’s getting to much fuel or an injector is stuck open

What makes this problem better or worse?

To get it to run good you have to rev it for like 20 minutes

How long has your 1993 Ford F-250 had this problem?

About a week after the engine swap