Michael, I think you have the intake manifold and carbs from an XK150. Here’s a photo of the XK150 intake manifold and starting pipe arrangement.
Mike, I agree and appreciate this photo. Last last night I learned more about the variations of intake manifolds on the 150. I had felt the smaller tubes with my hands and could not imagine what it was. I am wondering if those tubes get plugged up with gunk? Is it worth trying to remove and clean it? How tough is it in-situ? I also read an extended discussion about the necessity of having anti-backfire valves in the 140, I understand this set up does not have the ABV, probably because of the several smaller tubes presenting less of a hazard, BUT I have had two fires already starting with a backfire of this engine. That makes me think the tubes may be plugged up and allowing gasoline to pile p n the tube-yet a backfire is pressure coming FROM the engine and if the tubes were plugged, it couldn’t start a fire. On theother hand, the owner says that all the years they had the car, it was hard to start and had to warm up for several minutes before it could move. I would appreciate your thoughts on the necessity to clean those smaller tubes.
Thanks, Mike Moore