Don - I tend to agree...just wish there was some document trail or evidence verify.
BTW, I spoke to my friend who has restored some nice mid-year Vettes and has been involved with the NCRS for years...basically, no clue, so maybe the ink stamp process was something implemented by Holley after '67??..maybe beginning '70? Not a lot of data points out there, so it's just speculation at this point.
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Steve Nuwer
1970 Z28, Norwood 03A, 48 48, 723 Int, M20, COO, 2021 Legends Platinum restored
1970 L78, Norwood 04C, 17 17, 711 Int, M21, COO, born-with drivetrain project.
1972 Z28, Norwood 11C project, born-with drivetrain, 26 26, 775, M20, CGG project
1970 Z28, Norwood 05C, 48 G, 720 Int, M21, COZ, Original Unrestored (SOLD)
www.2ndGenZ.com
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