Learn a lesson on bad gas

I ran some gas stored over a winter with a gas cap that didn't seal. Car ran like crap, barely idling. Pumped out the little bit in the tank, 5 gallons new stuff in, and it purred like a kitten. Some of the worst gas I've run, and no damage. Just my experience.

I've run gas that was bearly a liquid before, car I purchased from salvage yard, trust me it wasn't bad gas, the exhaust would burn your eyes the smell of old gas was so bad

I would point to a very crappy rebuilt head, bad gas doe not go on the vavle seals, it goes into the combustion chamber, and burns; not well but it still burns