Yes I read one of your posts and I was like Damn! I'm going to put the best valves I can find into the 20r head I want it to be safe for going past 8500 but then never go past. I'm going to have the rods and crank of what's ever I do balanced to perfection. Also I was told I can put a girdle on the crank. I saw one on a Honda engine and asked "wtf is that?" Then the master mechanic next door said I could make one or find one for the 20r if I was lucky. Dose the crank need the beefing up? I assume the stock crank can handle stupid power. What about the mains?

these cranks have 5 main bearings so the girdle isnt that much of a necessity.   I saw a video a few years ago where a 22RE with dual turbo's and nitrous making 1100 hp but probably had $20,000  in it if not more.
but you can get plenty out of the engine you have listed if you fatten up those fuel jets..  with correct cam timing and work finding the right curve on the 20R distributor I think you can find 120hp easy out of the 20R.