I've considered going the eagle head route, but decided against it with this motor since the end goal is a supercharger. I though the compression increase coupled with boost wouldn't be a good idea for pump gas. The ultimate long term goal will be a larger displacement G3. At this point, I want to get the 5.7 in the car and running and I'll worry about the bigger motor in the future since it will be a drop in after the car is officialy set up for a G3.