speedmaster 440 heads

they look a lot like edelbrock victor heads but yet they say the exhaust, intake, and spark plug style are standard unlike the edelbrock victors.

Looks like angled spark plugs if that matters, I know to some it will.
Says pushrod oiling. But looks like maybe the heads are drilled for rocker shaft oiling. Anyone know for sure?
Will need to oil the rocker shaft/rocker arm contact somehow.

The complete heads say 2.1 intake valve diameter, but the bare heads say 2.2.

Are the bolt holes heli-coiled?