I have a 1997 F250hd w/351 is there a good chip or programer that will work?

 

Superchip makes one. It worked good on my 96 with the 351.For more performance check out the Xcal 2 or Sniper. They offer custom tunes & can be updated with your home computer. I don't know it the Edge will work on your truck. I've read it doesn't work on some F250s yet.

 

I don't think edge covers your application, but I could be wrong. I love my special forces.