Since you are already over geared for the tires you now have, I would look into swaping in a 22re if regs allow it.

Can you get a turbo or supercharger for the 3ye engine?, this might be another way to go if you can't swap in a 22re.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed