I have one of these and have been collecting parts for a restoration for the past couple of years. Lots of the 360-4 specific parts were missing, but a decent place to start. I'm not sure if original to the car (headers installed when purchased), but a cast number 3418623 manifold with date 8.31.73 was included with spare parts when purchased. Date of manufacture of the car was 2 - 74 so perhaps could have been original to the car.
I don't post very much, but thanks to all the members who provide information on this forum.
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