If anything he is helping your sell. Why buy a 122 for more money when he can buy your 112 (polished) and get pretty much the same boost out of it. I was personally involved in taking a 112 off and putting a 122 on and that truck (6.0L) didn't gain any boost. Yeah yeah, he changed cams, but unless you can get a 122 for the same price or cheaper...I'd just do a 112. You can almost get a better deal on a 112. Just my 4cents. (inflation and trying to cover my losses in the market)