Do you know of any references i can get in regarding to GM part numbers?
ebay is a good source for the P&A's, but they're usually very expensive. However, a few years ago a fellow Corvair enthusiast (yes, I like Corvairs) scanned in all his Corvair P&A's and Shop Manuals for us. In time, he also scanned in a few others, and the 1967 P&A 34
and the 1971 P&A 30M
were among them.
And if you have a Corvair, here's the MAIN PAGE
("Shop Manuals" and "Parts Catalogs" links at the upper left corner).
Enjoy, and make sure you send him a big thanks!
I have a couple of NOS Corvair mufflers that I bought in the 70's for my 57 Chev, then never used. I don't have the part no. offhand, but I can get it easily enough. (off the boxes) Any Corvair people looking for these?