Dan, you have the 383 C body assembly (basically, the same assembly as a B body but with different exhaust manifolds). As the other Dan said, there was no 335HP variant available for the C body like there was for the B body. C bodies only got the 330 horse version with the Holley.

So the general answer to the original quesion is:

HP 335 horse cars got the AVS
LP 330 horse engines got the Holley.

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