[Formulajones]

Maybe I didn't read it correctly but degreeing the camshaft is much more involved than just putting the wheel on and rotating the engine back and forth. I didn't see any mention of a dial indicator on the #1 intake lobe of the camshaft to verify ICL.

Also agree with Cliff. Knurling valve guides is an old cheap repair that shops would do decades ago to tighten up the guide to valve clearance. It's a short lived repair. They used to do the same thing with piston skirts to take up excess clearance from worn and out of round cylinder bores so people didn't have to pay for overboring and new pistons, another very short lived repair. Eventually the engine goes back to an oil sucking machine.

Having the bosses machined for positive seals though is always a plus and something I have done on every head these days. Umbrella seals are useless.