Good 360 Aluminum Head
You should mock up the block and see where your deck height is...
I would not use the 65cc open chamber heads...I would stay with the 63 cc heads.
Once you know more about where the pistons are, then you can make a better decision on head gasket also.
My 73 Duster with a 360 had 10.6 to 1 with eddy heads, 230/236 cam at .050...ran on 89 octane...but we also have lousy air .lol