Stock manifold runners have been welded to allow for port raising, both have been port matched to race ported M&A heads.
Stock manifold.............$375 shipped to lower 48 states
BGC manifold...............$400 shipped to lower 48 states
BGC manifold does not have plenum or fuel rails. It does have fuel rail brackets. The plenum and rails are the same as the Champion GN1 plenum and rails. The only difference between the Champion and the and the BGC is injector location. The injectors on the BGC are closer to the port.
Here is a pic.
Stock manifold.............$375 shipped to lower 48 states
BGC manifold...............$400 shipped to lower 48 states
BGC manifold does not have plenum or fuel rails. It does have fuel rail brackets. The plenum and rails are the same as the Champion GN1 plenum and rails. The only difference between the Champion and the and the BGC is injector location. The injectors on the BGC are closer to the port.
Here is a pic.