[steveh29]

Looks like you've replaces just about every component of the cooling system. When does it overheat? Does it only overheat in traffic and then cool down on the open road? Or does it overheat no matter what you are doing?

If it's only overheating in traffic or during city driving, I'm inclined to think that not enough air is being pulled through the radiator (no shrouds, fans not moving enough air) or the radiator is crudded up and the radiator can't transfer heat effectively.

If it cools down quickly when you get out of traffic and on the road, then I'm even more leaning towards an air movement problem.

Outside of the cooling system, having the engine running too lean or the timing off can cause overheating - but my problems have always been radiator/fan/shroud related.