Sinkhole, I'm confused.... A b pipe is an exhaust pipe, it has nothing to do with the intake manifold or carbs, other than you need to re-jet the carbs to tune for the added HP the pipe makes
The pipe has 3 pieces, a manifold, a headpipe and a chamber. The manifold bolts to the engine, the headpipe bolts to the manifold with a 3 bolt flange and the chamber attaches to the headpipe with a silicone coupler and hose clamps