What can be done to keep them down?
Heads have signs of heat, oil is cooking under piston.
1550 * EGTs from 5500-6000.
Iron Eagle 345, no intercooler, 8psi, 900hp. 150* intake temp. low 12AFR cruising. Low 11`s @WOT
13,000# heavy boat .
I thought about giving it more fuel. ( Northstar engine after 20 seconds of WOT goes to 10.0 AFR to cool piston)