I pretty much did what the gang suggests and had good results when we went to Japan for three years -- I left the Chevelle in my parents' barn. I set the engine on a mid idle and then started dumping a quart of transmission fluid down the carb (Holley 650 double pumper). About halfway, I increased the pour until the engine choked out. All the smoke cleared the swallows out of the barn for awhile ...
Three years later, I put new plugs in and a new battery, and it took a few spins to start, but it did. Ran good after it burned off all the tranny fluid.
