i have used hooker super comps on a few 390-428 66 fairlanes and 66 comets with minimal issues,but dont get me wrong,they take a little time and tinkering with to get them on ,but they do go on.the pass side 2 piece goes on easy,but you have to use tall tires on the front and a good set of springs to get good ground clearance.thats also why i put the battery in the trunk and use alu heads intake and water pump too,for the extra ground clearance