NHRA STOCK CLASS DUSTER

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A 71 340 has more valve and more compression that the 72-73. Or does the carb itself make more power everything else being the same.

What Dakota oil pan will work on an A body?
I have one of the specific Dakota pans with pickup, it fits an A body. If anyone is interested let me know. As I recal it is a 91 pan only that works.