Blaine,
on second thought, I was wrong about the hole squirting oil on the back of the cam timing gear, because the cam thrust plate bolts over that hole. Therefore that hole is merely providing oil to where the cam wears against the cam thrust plate. The oil isn't allowed to squirt freely, it is restricted.
Therefore there's more of a possibility that installing a shaft in the distributor shaft guide hole would increase oil pressure at idle.
I didn't think it through last night, I apologize.
George
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