Yeah.. I agree we can get a little crazy with the subject of tweaking more power out of 22. I've read thousands of posts over the years on the subject. I've done engine swaps in my past and they were a lot of work and required fabricating adapter parts. If I were going to get real serious about swapping an engine in this truck, I would become a sinner and build a 1963 Buick 215 aluminum block V-8 - IF I could get it to pass emissions.
For this rebuild I think the machining of the block and head at the machine shop, it probably would not cost much more to bore it to .060" over, deck the head a few thousandths, and buy an adjustable timing gear.
I DO think the gain torque would be worth it.... but it's all speculation right now.
It's all fun.
I had that 215 in a hand-me down 1980 Toyota with cat sized rust holes in it. It was a pretty cool engine, I have to say. The carb didn't like angles at all but it got 16-17 mpg highway and was not lacking for power at all. I ran it with stock gears and 33s.