Running a stuck engine

69 Cuda 440 said

This ^^^^^^^^^^^^

Marvel Mystery Oil ......... a remarkable oil-lubricant.

Click to expand...

This. Marvel's Mystery Oil ,works. The old man, made me run it down the carb, of my '69 351 Cougar. The ensuing tailpipe smoke stream , got a phone call from the Fire department... FWIW, it sure had less detonation in street digs.