You will be fine Shaun, just be sure you run good oil like Klotz or Bellray or something on that level and use 91/92 octane non ethanol gas.
As long as the head is getting direct cool air it will be fine. The head is the hottest part next to the exhaust port itself but it has the exhaust bolted to it which pulls heat off the manifold.

My Mustang runs awesome with this set up on side exhaust version DLE. 100mph with a Xoar Carbon 22x10 prop

What plane is that?