408, Small or Big Block? Need EGT Info

Very white insulator even a yellowish glaze,detonation,spots can indicate metal chunks


Lets hope we never get so far as to see spots!! I don't want it to get that far. But I can't seem to get the other people here to understand that I want to know what it is "When" I am on the floor, not after I get it home. If it starts to get hot, I will back off, you know what I mean? Make some adjustments, add fuel, retard timing, then incrementally work back up to the same WOT speed. Geeze, is this that complicated?