I do not have any baffling in my plane. It is the new Top Flite razorback P47. I was getting 220-240*F on the no1 cyl. But the sensor was in the front. So when guy were talking about the sensor being on the back side I decided to move mine. And that is when I discover that it was getting hotter than I ever wanted it to. I think 300*F is too hot period. I would like to see temps no higher than 275*F on the back side, so it seems I have some work to do.