Steve, Not all sheets note a C6ZF-C carb, Review sheets for 8MA1114 all that is noted is Autolite carb and the engine TAG is from Jul68 yet the car is a 1970. Had this been a 1970 motor then you'd have a Motorcraft carb (or a Holley if modified)
Someone on this forum had me review much of the info I had. My belief is that a 'bunch' of motors were ordered in one lot and then a few smaller orders. The engine casting dates are mostly 1968. There were some smog cars with the wire holders and smog pump tubes for those US cars needing emissions.
YMMV
D
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