I remember reading somewhere that the four little punched tabs on the inside of the valve covers are traps for gunk and that it's a good idea to grind them off. Can't find the reference but wonder what you guys think of this. Is it a good idea? Wonder what those tabs are for?
Finally getting back into my Y rebuild and '56 F100 resto after too many crazy set-backs.
Bill C

Drag it home, figure it out.