Thanks Jon... I asked that question in this thread way back, never got an answer. We'll open up some ports to keep her cool as you suggest. I have seen some pictures of some pretty cool vent designs, maybe we can be creative and do something unique. It's a shame to cut big gaping holes in that cowl and destroy the lines or the structural integrity. I see a lot of guys (mostly in videos) that seem to have little concern for the looks and just put big nasty holes.

So, in this install, do you count the opening for the head as an exit or an entry point for the airflow? It makes a big difference on how much exit venting we'll need to put into it.

I see the head cutout as an exit, as it seems the airflow will not inject into that point where it is just behind that ramp below the prop. That ramp looks like it needs to be made into an input vent to me. Your thoughts?

Thanks for the feedback. This thread was really active when we started... now it has died [] and we have little feedback to help us learn and improve.