Late model exhaust manifolds in an early A-body

I have set off of a 92 datoka that I have yet to install, my car is a 64 valiant V-8 four speed car and I will document the install when I can find time to do the deed......I also have toyed with the idea of reverseing the manifolds, but also like the idea of milling the gasket surface....looks good glad someone has done this and has pics to show the work...awesome..