I had some free time today, so I shielded my intake, and ran my scan program to see how well it did. Before this I was getting about 167 sitting idle, now I'm idleing at about 130. But once I start moving it drops. Outside air temp is about 60, when driving it would drop in to the low 70s
Hard to makeout the readout, but you can see the drop.
This was after driving for a while, the top scale is engine temp, bottom in intake temp.
This is what I did. I still want to do a little more to seal it better on the top and bottom.