HI, there is a tread that covers these swap right now, from IMGTX....

You will need an extension for the fuel pump arm,. I think Mancini sells those...

Stock manifold won't fit, It will hit the steering column, you need to get LA style A-body headers to clear every thing. Yes the 904 bolts right on, keep the magnum flexplate and use the 904 torque, but make sure to upgrade your tranny and put a deep oilpan, otherwise it will not hold..

Use the oil pan fron a pass car V8 for the engine..

I'm doing this swp right now in my 67 Battacuda
Daniel