I recently bought an 8 with a Barrett IO-390. Runs great, but the #4 CHTs are consistently 50 ish degrees cooler than #1-3 at cruise. I see about 350 on #1-3 and about 298 on #4. The EGT on #4 is about the same as the rest of the cylinders. I tried searching through threads, but couldn't seem to really dial in the same issues and the thread from earlier didn't quite seem it either... let me know if I am missing something. I also have pics from cruise that I can upload.
Thanks a lot!
Thanks a lot!