1. Gearing is huge with these trucks. I run 32s and recently went from 4.10 to 4.56 and if felt like an instant 30% power increase. To be honest 4.88s would probably have been better but I had the 4.56 already.

2. You've already come pretty close to the limits of what can be done with the 22r engine. You may net a few more ponies with some other tricks but...

3. Engine swaps can be great, I spent way too much on building up my 3.0. In hindsight a 3.4 swap or more likely a chev v6 would have netted more for less.

(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)