It is tempting to make upgrades but I have to keep the truck emission legal. The 392 cam is VVT, my truck is not. One guy suggested the Eagle heads but that would bump my compression up too high.
They are not big blocks designed in the 1950s, 12 to 1 is fine on pump premium, thats what mine came out to CCing everything when I put them on my early 5.7.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
