This forum is so valuable to guys like me, to a point. Then you're way over my head. LOL. However, I'm reasonably sure it's not heat related. Sometimes it happens within the first 15 minutes or so of driving and sometimes it's after an hour or so. When I said it happens around 50mph and goes away around 60mph the speed increase is from the "surging" and not simply by giving it more gas. Hopefully I'll be able to pull the pump today and change out the fuel lines and get back to you with the results by tomorrow.
Wrench, I was at a car show this past weekend in Burns. Camped out in Montgomery Bell State park. If you were there you might remember my German Shepherd, Willy, I had with me.

Last edited by sweet_willy; 08/26/2011 6:03 PM.

As I grow old I find I'm glad I lived in a time when "common sense" was... common.
http://s1114.photobucket.com/albums/k540/sweetwilly2/The%20Truck/?albumview=slideshow