Thanks for that. So the exhaust heat is used only for the choke and when it warms up that shuts off and the water always flows through a water jacket that is cast into that intake correct? Do the Fenton and Offenhauser intakes have water jackets in them? I'm on a big learning curve here so have patience please. I would like to do this right the first time and do most of it myself. Thanks again.
Both the Fenton and the Offy intakes were designed to bolt up to the stock exhaust manifold. The first addition Fenton headers replicated the stock exhaust manifold 'hot-spot' - allowing the headers to be bolted to a stock Chevy intake manifold or their dual intake. One can buy an aftermarket heat plate that can be made water-tight with a gasket/RTV. For example:
OffyHeatPlate@12Bolt
