The common knowledge that's out there says you HAVE to run higher by 1 to 1.5 points to make the same power. That's why I've fussed with the calculations.
However... there is this - which flies in the face of that idea.
Very interesting to me in this test - the engine made more power at lower temp with either aluminum or iron heads. How does that jive with the idea that heat = power and heat loss by aluminum heads requires more compression to compensate?
