68 BB smog bolt head markings
I'm getting ready to have my smog system restored and I would like to know if anyone has an original 68 BB smog system on their car and can tell me what bolt head markings are on the bolt used to adjust the belt tension. I have one that has a P, grade 5 (3 marks). I think the rest of the system I have is original. Thanks.
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Martin Foltz
68 Camaro SS-396
L35/M20, Corvette Bronze, black vinyl top
George Olsen Chevrolet San Francisco
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