I have an opportunity to get a L94 engine out of a newer Escalade that was wrecked for $2800. Engine has 28K miles and comes with front acc., harness, and computer. Engine has DOD/AFM and VVT. It's a 6.2 all aluminum engine. I'm just wondering if the DOD/AFM and VVT make the engine worth it? Is it expensive to eliminate this stuff? I'm of course greedy when it comes to HP and would not be able to leave it alone in it's stock form of 403 hp and 415 tq. Perhaps "just" a supercharger on top with a new cam. I'm looking to put this in my '78 Z28 backed by a T56 trans. Any thoughts?