Hey guys i recently purchased some $150.00 hedmen hedders from jegs and noticed they had the ball type flange connection, the collectors are part of the header and are 3". I was looking at http://www.summitracing.com/parts/PYE-XVX13/ and was wondering if they would hook up to this type of connection? and if they obstruct anything on a 68 b-body? Thanks Guys