This will be my 4th Lean burn delete so no problems. I think I have any good carb. What I was wondering is if it has the cats on the Y pipe? The Canadian Y pipes aren't available any more. I'm going to have to look at the 79 Diplomat and 85 Fifth and decide which one I'm going to keep for me. The 85 is lean burn deleted, bigger exhaust, new headliner, new shocks and the front end completely rebuilt. I was going to put a windshield in it, get it aligned and tag it this days off but I might wait.