So I sealed my plugs with Permatex multi-metal epoxy stick. Dried like a rock, can't pry it off. Good to 350deg and 3500 psi. Pressure tested today after 48 hr set, I'm good to go. At least for manifold heat.

Dave, ironically, me and a buddy at work were discussing the VW manifold today. He used to work for them as a mechanic years ago.
I originally thought about the pulse effect also, but was told its more of a heat transfer. Now I'm not an engineer, but hers a thought...

Would there be any benefit attaching one header to the heat plate and the other to a line the drops below the header, possibly the downpipe in a welded bung that lets say, enters the downpipe on an angle. Like the VW, would we then get an exhaust heat that pushes heat in, and in a sense pulls the heat out for a more tru flow? Or, am I, we over think all this!
Phil...


Phil