PowerPipe Exhaust for slant/6

Don,

can you explain to us how the design is in any way beneficial? Not to attack but from the look of the design I cannot see how this would flow well at all.

Can you do a 3 way Comparison

this unit on a dyno with the same morot on a dyno with a stock manifold and a competitors (such as a dutra)

I am just not getting this.