Other discussions about crank scrapers:
Yotatech
SupraMania
Given the HP of the stock(even mod'd) 22r(e), a 2-3% gain in HP would be unnoticed, and you could spend the money for one on other things, like gas and grub for a wheeling trip. <img src="/forums/images/graemlins/kewl.gif" alt="" />

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