Where can I find repo tailipes with polished tips for a 1969? There is a set at classic industries, are they the only ones? Do they come set up for dual mufflers or just the original single? Anyone have any experience with the set? Didn't the big block camaro have dual mufflers therefore dual tailpipes must be out there somewhere? What size are the pipes? And which flowmaster mufflers finish the package for a convertible? Thanks in advance.