Trick Flow heads and water jackets

Just received my motor back from the machinist and will be installing it back into my Demon. My question is when I go to hook up my Dougs headers will the bolts be going into a water jacket on the heads or is this even a concern with Trick Flow heads? If I had an air compressor, I know I could just blow air into each bolt hole and that would tell me, but at this time I don't have one. What is the preferred way to seal the bolts these days? Teflon tape? or a high temp paste sealant?

Thanks in advance.
Go to the electronic section at China mart, get a can of compressed air for cleaning computers, cheap and works good