I picked up this 1980 Pick-up short bed 20R recently and I've just rolled the milege over I would say for the second 100,000. It's starting to burn a little oil so I'm thinking of doing a rebiuld on it(a little project for my son & I). I've been told the 22r head will fit and add a few horses(picked one up at a local auction cheap, just got lucky). I was just looking for any web site and\or coments anybody may have before I Jump into this?? and No I've never done a rebiuld before! but I do do all my own auto repair, that is with anything not under warranty.
Looking for a few good places to start.

You have your info backwards. I'm not sure if a 22r will fit in your truck and bolt up to the tranny but,....... The ultimate older (22R,20R) 4 cyl to build consists of a 20R head, pre85 22R pistons, and post 85 22R block, rods & crank. Also put a dual row timing chain in it for better strength and less stretching. The 20R heads offer better flow than the 22R because of emissions reasons. When rebuilding your 20R head put 22R valves in it cuz they are bigger and you only have to grind the seats not replace them. I've had a 83 for almost four years now and I have been researching this pretty much the whole time. I picked up a motor from a junk yard to rebuild while I still drive mine, but I haven't finished it yet. A good place to look for your rebuild parts is eBay. There is a guy from Oregon that sells the parts you'll need on there and his son runs a machine shop that does rebuilding. His username is engnbuilder or something close to that. This is where I plan on getting all my parts. Other places of interest would be www.lcengineering.com and www.northwestoffroad.com Hope this helped.