The way I understand it, the Big Block Mopars original exhaust tapers down to 2-1/4 before they meet the muffler. Gardner exhaust has a very good description of how the exhausts were designed and assembled for each model. If this is true, then their are added liberties to the original Mopar design as well. Other small cubed Mopar motors also get the benefits as well by a 1/4 to 1/2 increases in diameter
Grant it you have an H pipe that everyone got. I agree with you their! In a nutshell, if it takes the best HEMI builder in the world to be the quickest Pure Stock in the country, I feel no shame, CUBIC money! Nice posts and controlled debate on the Pure Stock topic.
