I recently put a stock 76' 350 from a 3/4-ton into my 86' Blazer. The problem is sometimes when I turn my truck off the engine diesels, I HATE it when engiens diesel. I had my timing set at 4 degrees, and then at 8 degrees. The engine dieseled at both settings. I also have the idle turned all the way down, but not sure about the fast idle if that matters. Does anyone have any solutions?