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I looked it up in my 164 microfiches (HARD to read!) and it says pretty much the same thing.
My guess is that Scandcar is furnishing a K cam in lieu of the C as an acceptable alternative.
I checked the GCP.SE website and found the same parts book page giving the same 3 numbers.
All of the OEM cams I have pulled from B30 engines have been "C" cams and many had flat lobes.
Don't think I have ever pulled one from an auto-tranny equipped car though.
My understanding was that all the US ones were C cams.
I think the big dip in 1975 was as much lower compression ratio as anything.
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George Downs, Bartlesville, Heart of the USA!
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