Looking for info on a Manley big block cam 17383

Yeah, I found that, too, thanks Rob. This came out of that engine built by Nick Tosi, I'm reaching out to Nick as well.
Is it used? I cannot see a wear pattern. Might be grease hidin it though. If those specs are right Bewy found, it's a goodun. That 107 is likely the LSA, so it'll be a little lumpy.