Very similar. Mine does not have the two raised bosses for vacuum, though there is a tapped hole there. The squared area where the exhaust manifold bolts on ( for carb heat ) is square not scalloped and the holes are not threaded all the way through . I am a little technologically impaired, but I will try to post pics. the ports where the carbs bolt on have had a portion of the dividers removed. I assume it was for throttle blade clearance for some type of carb. Two of the studs on the rear carb base are broken out. I can weld them and redrill them (I have a mill), or should I just leave everything as it is. The manifold was polished at some point in it's life.Also, the center to center distance between the end ports is about 15".
