NA Slant six vs 440

madmax/6 said
Yes,Thanks Charlie.A pig,or sometimes called a turtel,mounts on the bottom of the manifold.This one is about the size of a tennis ball cut in half.In theroy it will slow down the flow to the 2 inner runners and give a more even flow, and mybee increase overally flow by makeing the big open chamber smaller.Does this make any sense??I will test and report.Mark

805moparkid said
ah yes! the turtles!! i heard that the old time slant racers stacked Popsicle sticks in the same place... also shows the same thing in the mopar performance engine book

Nice run!

The "Pig" or "turtles" in the intakes plenum does make sense. The exact sci. behind it all is correct intheroy, actual application can vary and actual performance could be a hide and seek game.

The "Air damn" as noted in the MP books is an easy way to help correct air flow down the runners. You'll note in the MP books, the "popcycle sticks" will vary in length and height. Length wise, it can be inside the runner length or to the outside of the runner in length. Height can be 1,2 or maybe even 3 sticks high.

I would imagine, that if you go this route, testing something like exhaust gas temps would be the easiest way to figure out if you went the right way. Or maybe even a 02 sensor in each header tube. Dyno testing this would be very costly.
But test you must and power you will find. Looking foward to the report on the Aussie intake. I hear very good things about the Aussie's work.