Had a 64.5 Mustang, small block car. Stuck hard but always intact with air cleaner & hood. Filled the thing up with CRC-556 (kinda like WD40) through the carb abd through the plug holes. Used most of a gallon. Poured the rest in over a few days. Every day we would take a 15/16 soctet on a breaker bar with a big hunk of pipe and try to rock the engine back & forth. A few days into the excersize the thing moved about an 1/8 of a turn. Each day from then on it moved further - maybe after a week or so it was turning all the way 'round. new plugs and fresh gas - fired it up. Always smoked a bit - but the guy we sold it to drove it away as a project.
