While cleaning up my garage I came accross a 4bbl intake with an engine tag on it that I can't seem to decode. It lists the engine code as 574-C.
I was unable to find that number in any of the online decoder lists. The tag states that it is a 289 with a 1964 build date. Can someone shed some light on what engine this tag identifies? I'm hoping it's my original intake and tag, I've run aluminum manifolds for decades.