Here's the latest. She's no longer falling on its face. She doesn't have all the power yet but seems to be getting better? The idle is smoother but still not all the day there yet. Still smelling kind of rich. But we are getting somewhere here!

 

If you have access to a scanner, see what the PCM thinks engine temp is when the problem presents itself, and see how close that is to what the actual temp should be.

 

Subbed...Im having the same problems, truck sat for awhile before i was able to put a new radiator, cap, rotor, plugs, wires, and jegs y-pipe. Anyway, I just put new o2 sensors in and its a little better but smells rich and isnt right. check the injectors too. if one is leaking or clogged it'll cause the richness. thats next on my list to check.

 

Just because they smell fat/rich does not mean they are running rich, find a scanner or get a wideband 02 gauge and see what your A/F readings are. Once you have your A/F numbers then get ahold of Hemifever (SCT) and get a tune to correct your A/F mix if needed.