Doug, I've seen that muffler problem before. I forgot all about it, but I once had a 318 Satellite that ran just fine when I put it in the field, but six months later when I went to move it I couldn't get it started. I looked under the hood and found the mice had done their usual nesting in the air cleaner, and cleaned it out and figured everything would be fine. Sure enough, the car started, ran awhile...and died when I put it in gear. Tried twice more before the battery flattened out. Plugged it into the charger overnight, and the next day went out to try again. Got the engine started and let it idle for about 15 minutes. I started getting gray smoke out of the tailpipe, and when I shut off the engine the smoke kept going. Turns out another family of mice had gone up the tailpipe and nested in the muffler. I used a coathanger to fish out as much crud as I could, started the engine, and burned out the rest. It really stunk for a while, but no permanent harm was done.