Is this the heat plate you spoke of earlier?
http://www.langdonsstovebolt.com/store/#!/Heat-Plate-for-194-230-250-292-Inlet-Manifold/p/1222036/category=361513
This will bolt under the offy intake?
I am sorry, I am new to this style of motor.
And I suppose you run coolant lines from somewhere, to warm the carb with this plate?