Old Yeller

Tube the pushrod holes (kiss the tube) and the common wall holes, and a 2.05 valve with a nice 60-45-30-15 valve seat do the needed porting and put them on. Or do the above with 2.02 valves if you already have them and go have fun.
Ok colour me blond what does tube the pushrod holes in tale? (Kiss the tube) I’m lost :(