It has been awhile ago, however I was able to track down this photo of the exhaust system that I installed on the D150 using Dual Dutra's
Many folks y the two pipes together some what close to the manifolds. I wanted to simulate long tube headers with the collector moved out.
IIRC the two head pipes are each 31 inches long. The pipes then make a 90 and flow into a Y pipe make another 90 and flow through a Flowmaster 60
then exit the side of the truck right behind the muffler. I used Remflex gaskets at the head and the manifold flanges.
You will never mistake it for a v8, this slant has a has definite snarl to it, does not drone at highway speeds.
I used the standard bat wings and studs. Recommend mocking up the manifolds and intake on the head - block
prior to installation, if the engine is out of the vehicle.
I had heard that Aussie Speed fixed the interference issues, watch at the rear side lugs, near the headface.
the intake is a Mopar Performance cast aluminum 2bbl, Holly 2280 carb, small cam,, 212 @ .050, I set the motor up for low RPM torque,
Its no drag racer, but was not set up that way, pulls hard from 1800 to 4000 RPM, I have 35,000 miles on the truck-engine since it was
all rebuilt. I am sure the under side of the D150 is not as clean now as it is in this photo, heck, my garage floor is not that clean today....
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