This third gen came to us half done as an "installed" long block 6.2L crate motor with mismatch accessory brackets and horrible pulley alignment. The mated up transmission, a hanging RPM built 4L65E, had no crossmember unless you count the ratchet strap barely holding it off the ground. And a chewed up main Holley harness that mice had been mealing on for a while.
We addressed all known issues, cleaned it up, installed the LSA supercharger, slapped a tune in the Holley Terminator X Max. Then did a few rips and sent her on her way with a pat on the rear bumper and new lease on life.