back in the days Chrusler dominated the muscle car scene. They were on to something, if it worked then it should work now. I have to give credit to chrysler, the hemi was way ahead of its time, and the technology used is still active today. However the hemi design was not a chrysler design, the domed head with valves radially about the center point was developed in the pre-WW2 era by P&W and Rolls Royce who used the technology in their radial engines.
As for using a air intake system the has a low conductivity to reduce heat soak. My mon's 98 chrusler uses a plastic upper intake. While the Duratech uses less expensive to manufacture aluminum. If someone could mold up a plastic upper intake it would help the heat soak situation, since the aluminum conducts heat from the engine and transferrs it to the air. Find out for yourself, go for a drive, then open the hood and touch the upper intake, ouch, its hot. Just FORD trying to save money in production
