I have some aftermarket Fentons. They have threaded bungs into which I screwed brass pipe fittings for tube to carry hot exhaust to the bottom of the Offy intake plenum. I fabricated a plate for the bottom of the intake and threaded a couple of holes to receive the tubes. I've been told over and over that this cannot work but it does and has for 20 years. I did have to tighten the fittings once though.
