yikes old spark plugs

I just pulled these out of the ZZ4 in my`64..it appears the plugs have been in there gapped at .050 with a points type distributor since the motor was installed in the `64...that was in 1997.

Looks like some of them wore greater than 50.....how did it run?

I think you got your moneys worth after 10 years! With points, .050 is amazing - you must have some really good wires! Put a new set in for another 10 years!