65 273

I'm going to be pulling the heads on my 65 273. Yes this is the one with the 5/16 intake bolts at the wierd angle etc. What should I be aware of as far as replacement head gaskets and intake gaskets? I heard the intake set for this year is hard to get and the end gaskets don't fit. I don"t want to run into any vacume leak problems. The reason I'm pulling them is number one they need to be freshened up as far as the valve seats etc, and number two I have a coolent leak that I am hoping is coming from the exhaust manifold stud on the rear passanger side. As soon as the car gets up to running temp it disappears, I am also debating throwing on the D4B so why not do everything at once. Last, is there any truth to the myth that freshening up heads without rebuilding the bottom end is asking for trouble...Old mechanic told me that once.