Nothing special, I just cut the bottom of the cowl as shown in the manual... basically a fairly large half-circle opening at the very bottom of the cowl. For the outlets, I simply opened up the pre-cut holes. I didn't do any other venting, I think enough air is flowing through the tunnel to keep things cool. I did use thin light ply to close up the can tunnel to cut down the heat in the fuse.mndless said
Nice ! How are you venting along the bottom ?