Just the roller rockers. I removed the old parts and installed the studs Friday night. Waited 24 hours for the loc-tite to cure then installed the rocker arms. Buttoned it up Sunday morning and ran it at idle til warm up, constantly looking for signs of failure.
I installed new plugs while I was their saturday. Just a bit ago I removed them to see any signs of lean condition or otherwise, so far they look spot on (as did the plugs I pulled). At the end of the week I will pull and inspect the plugs again to see if they show signs of lean conditions.
If I can get ahold of a wideband kit for cheap, I'll pick one up. But the truck runs awesome as of right now. No pinging, no signs of rough or "spikey" acceleration. Not a single hiccup. (except for first start up, it fired first try but wheezed and stumbled for a bit)
All in all, the engine is much quieter. Climbing hills does not require downshifting and in the event I do downshift to take advantage of the rpms, the speedometer climbs up and around quickly.
Pssst:Headers, Intake, and Rockers make for a sweet exhaust note, too....