Originally Posted By gdonovan
Originally Posted By Supercuda
http://www.hotrod.com/articles/mopp-0106-manifolds-vs-headers/


I went by an article on a 360 with headers and... it was utter garbage.

My mild 5.9 in my Duster with NO OTHER changes went from 14.2 to 13.49 out of the box and with jetting changes dropped to 13.0.

Manifolds vs headers - headers beat manifolds like a rented car.



Did you read the article?

It basically says the same thing, but with dyno numbers

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.