I'm totally giving away that I know very little about cars, so bear with me.
I'm currently working on a '65 Chevy stepside from Revell, and the instructions show only a single exhaust pipe from the left manifold. I'm curious why this is? Not only from a model perspective, but also for the real deal. Does that mean the other manifold would somehow connect together at some point or does it stay open near the engine?
Also, I plan on having a dual exhaust system based on the 1:1 I'm modeling after and the exhaust pipe ends where the muffler is at––about halfway down the frame. I'm curious how one might go about scratch building one of these?
This shows what I think would be the dual exhaust about half way down.