In looking at Steve Henry's plane and one Chris Wallen did, they have two different approaches to venting the heat out the side of the cowling. Steve has one big fiberglass vent whereas Chris has a stacked vent system. I decided to go with the stacked system changing it a little from Chris's rendition. Mine would be three equal vents per side. They won't stick out quite as far as Steve's but a little more than Chris's. Mine would be made out of aluminum like Chris's, not fiberglass like Steve's. Because I am running out of time before my move, I wanted to keep it simple and get it done. They are static and remain in a fixed position.