LD 4B tells a story...

str12-340 said

Does anybody know when they stopped producing the LD 4B? I have a 1972 Edelbrock catalog that still has them...

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Well, I bet it ain't 72 then. lol I would "think" they were made well into the 70s at least, as Direct Connection was cookin with gas then, so the market was still pretty hot.