I have 361 wedge that I'm disassembling. Removing the exhaust manifolds has become a problem. All nuts came off with no problem, no rust at all. The last two sleeve type nuts that go through the manifold are the problem. The left side collapsed and the right side worn rounded. Can these be drilled out, or is there a better way. I"ve not had this problem before and looking for advise.
Thank you,
Nick Tiberio
FuryUs63