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Also, does any one have pictures of early timing tab covers and newer ones?
I believe I have the correct one, but you never know.

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The early BB timing covers, pre 1966 or 1967, (I can't remember the change over year, I'm a gear head so I can't remember details like that ) have the timing tabs straight with the zero indicator on the top. The later(smog) ones are curved and have the zero mark in the center of the curve with timing marks above and below the zero hole
Not hard to tell the differences once you know what they are I hope this pictures is clear enough to see the differences between the tabs