I have seen a lot of disgruntled posts about on different BBS's about Attarco engines and their customer service when trying to resolve issues.

You can rebuild it for less than 1/2 that amount, and have something that isn't going to crap out on you down the road.

What is wrong w/your current engine?

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