68-70 Hi po manifolds vs quality headers

The dragstrip has many variables involved. That guy also changed many things and it is not fair to blame the exhaust only. Just to start, his cam is probably too big. I got my information from watching my husband run engines on the dyno at his machine shop. I will say it again. The exhaust system is not that important at lower engine rpms on a stock or mild performance engine. Now if I was able to put stock maxwedge manifolds on his 8 second superstocker, of course that would be a different story.