the heads were ported to the gaskets on the intake and on the intake/exhaust sides of the heads. The previous owner had some pictures of the work. He’s not a pro, just a guy in a garage like most of us. The pictures showed what I’d expect from a weekend warrior, rough grind and not polished. They’re also fitted with the larger valves (2.02/1.60). looks like a standard 3 way valve job with the bigger valves. there doesn’t seem to be any bowl work at all far as I can tell.