I have attached an Excel sheet. Look what I could have done!! Instead of .020" over bore, I should have gone .060". The only possible trade-off going to .060" is that if I had to pull the engine down and rebuild it and it needed to be bored .020", I don't think we can go to .080" reliably with a 22??
But.... that extra torque would have been really nice, since I already had the block at the machine shop!!! 
Gnarls. 
I never bore an engine more than needed to clean it up. This block was the bottom of my 20/22 hybrid til i dropped #4 exhaust valve at 7000 rpm
it was a stock block but after that valve beat the hell out of that cylinder it had to go to .060 to clean it up.
to answer the question though yes you can bore it to .080 BUT pistons are about $400 a set. thats $100 per piston.
