Hi guys, I have a 1949 GMC FC102 and a 228 installed. It came with Fenton headers and a Howards (copy) aluminum intake manifold. It has no intake manifold heat at present. Been researching pros and cons of the exhaust heat for the intake by tapping into the Fenton bosses vs. plumbing water heat into a plate mounted onto the base of the intake manifold pocket area. I prefer the exhaust heat for a broader application from engine start to warm up. I understand how the water heat is plumbed to “flow” into the intake base pocket area designed for heat. But, I don’t understand how the exhaust heat plumbed from the fenton headers into the intake base “flows” using a kit similar to the attached photo.
How is the hot air moving and “flowing” through the base plate if it’s connected to two opposing supply (pressure) sources from the Fenton headers?
