+1 on Mr. Marshall’s suggestion. To make it even more effective, aim a 2” scat tube at the back of the oil cooler. No fancy bracket required as it can be zip tied in place.
Also, I highly recommend a test flight and then weather stripping up as many canopy drafts as you can.
"The plane won't build itself..." RV-7A N7.62MM sold
-RV4 purchased. Extensive refurbishment complete. “Takes off by it’s self, flys hands off, lands by it’s self...”
-HRII project: paint and panel to go!