I just rebuilt the 305 in my caprice and through some shorties on it befor I dropped it in the car. Obviously the factory y-pipe wont bolt up so Im gonna have to build from scratch from the headers back. I have never built a full exhaust system, just done some odds and ends. Im trying to figure out what degree elbow to make coming from the collector on the headers so the end of the elbow will sit level (like where the collector would sit if they were longtubes) and I have a place to start building the remainder of the system. Anybody have any idea? Thanks