Always be sure to converse with the camshaft maker of the "appropriate" distributor drive gear material as there have been different cam-cores made available (read: "off-shore"
)which do not present as acceptable to what otherwise might be considered the norm.
And beware of those company "tech-guys" that might respond to the inquiry: "Oh, those cams use the O.E.M.'s standard gear"! If so, follow up with: "So, what's the "standard gear" material to start with"?
Nine times out of ten they won't be able to answer that; and if such proves to be the case, go somewhere else for your cam!
Scott.