[DeTomaso] Both cool carb air and oilcooler naca ducts.

[Göran Malmberg]

Let me show two cars I made a number of years ago. The red car 
with only oilcooler air inlets, sort of 1/2 naca duct, and the black
one with both fresh air to the turbo inlet and naca duct each side 
for two big oil coolers.