I removed this manifold http://n8wct.com/modelt/IMG_0496.jpg
and this piece fell out of the intake side http://n8wct.com/modelt/IMG_0503.jpg http://n8wct.com/modelt/IMG_0502.jpg
Does anybody know what Ive got here?
Could it be the venturii out of the carb, or more likely, some previous carb? Bob
Or possibly a heat-riser of some sort? Bob
I have (or had) the same manifold and I'm pretty sure that is a part of the heat exchanger inside that manifold that keeps intake and exhaust gasses from mixing. I'm suprised your car still runs...
I also see you have a Stromberg carb. You will get more out of your engine if you change back to a standard intake and exhaust manifold. The manifold setup you have was for getting poor quality fuel to work better and tends to have the opposite effect on todays fuels. Plus, those setups can be problematic sometimes.
Looks like it is made to bridge the two castings and provide a venturi that would be surrounded by the exhaust heat to vaporize the poor gas of the day. It would be intersting to see the engine side of the unit and the inside of the intake chamber.