aluminum heads

why run aluminum heads if you dont need to gain 10 points in the war against detonation. Iron heads quenched properly are easily good to 9.5 to one on 93 0ctane. Iron is a lot cheaper. 50 pounds may be a half a tenth at the drags but will you feel that on the street?If you need to shed some heat because of high compression thats another thing.For the difference you could buy a roller cam set up and probably pick up more ponys. jmo