I bought a brand new 950HP back when they first came out, and it most certainly DID have holes drilled in the primaries and the secondary throttle blades. It was new in the plastic shrink wrap.
I'm not disputing you about his carb just giving you an FYI on the 950 HP carbs. He didn't drill it they come that way new...at least mine did.That was back before they had removable air bleeds and all that...mid to late 1990's.