Hey Guys! My Grandma recently passed her 66 Mustang 289 to me that has been sitting for at least 3 years and was never very well taken care of to begin with. It's now in a better home, and I started the long process of restoring it, only to remove the valve covers and find this:

Obviously not great. I was wondering, is it worth trying to clean these up and save them or am I better off just spending the money and getting...

'66 289 Do I need new heads?