I'd like to understand what a "fuelie" head is? I've been told that a pair of heads that I have are called fuelie heads? They are Chevy heads with a 2" intake valve and smaller exhaust valves. Are these for a small or large block Chevy? What is the going rate for these heads? Are they commonly available? I'd appreciate it if someone could educate me about these heads. Thank you. Mike34