Well said Dan. I may be lucky so far as the unit I received from Peter appears to line up fine on my k with the engine/trans/headers bolted to it. As I remember the angles were fine the last time I had slipped it into the bay for test fits. Will have to look again to make sure the next time I have it in there for further test fits. Peter does have a point too regarding the possibilties of k swaps being done over the years and how that can effect the outcome. But bottom line, when a company makes a product that is advertised as a "bolt up" unit, it needs to be. People should not have to field engineer fixes. Not everyone with a project car has the ability to figure out a fix. The unit should have been engineered, both on paper[ theory] and on the intended vehicle[ reality], which is where some engineers fail as they have never worked on something a day in their life.