Right about those numbers probably being useless, however
"D" engines, with CR equal to "A" engines but with 2 carbs, had A cams, never originally C...
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'62 Amazon Black/Red 4Dr 65K miles
'92 MBz 300CE 2Dr '94 MBz 320TE 5Dr
'86 BMW 635Csi '88 BMW M6
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