> Paul are you saying that even on a rad that is only 5 x 7" you
 > need 4 test points?
 >
 > I think the problem with this installation is that the back of the
 > rad sees the inside of the cowl which is being pressurized by the
 > other nostril inlet.
 > Peter
 >
 > Well it would not hurt. Make sure you use a one piece sealed duct.
 > Don't try to use part of the cowl as the duct.
 >
 > Yes an open nostril on the other side is a no no. Can you
 > block it off? Better yet use it to feed cold air with
 > a sealed duct to the carb or air cleaner.
 >
 > Paul Lamar
Hi Paul.
I don't think blocking off the other side would help because others have
helped cooling by adding more openings to direct air closer to engine
pan. There is no baffling whatsoever over cylinders so the whole
compartment gets pressurized. Attached is a rough sketch. In the new
position heated air from the oil cooler will be forced out top of cowl
(hopefully).
Peter


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