Header Chat

The best header set-up for an inline 6 is 1=6, 2=5, 3=4, then 3 into 1 at a 2 & 1/2 " outlet....will give the best of both worlds for Tq & HP through the rev range.....of course that will depend on diameter/length of primary, diameter/length of secondary pipes, and the volume of the collectors they each go into.
They don't make anything like that here for a Slant 6, so I got the best ones available here........