NOS GM BB smog tubes
These are GM smog tubes that have been sitting on my shelf forever. I got them with a bunch of NOS stuff in the trunk of a 1970 LS6 Chevelle. One tube has a GM tag that reads RH, 357106, 75D2. The other tag must have fallen off along the way. The finish on these is extremely nice - I would use them on a show car. They're for sale - let me know if anyone is interested and what you think they're worth.
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