New Small Block Headers

IMHO, header tube size and design are combo dependent, just like cams, intake or gears. Buy the headers that will work with your combo, be it a cruiser or a full blown drag car.

Something I haven't seen mentioned (I may have missed it) about ceramic coating is the fact that it cuts under hood temperatures, in the hot summer it can mean the difference between having vapor lock and percolation problems or not. Several positives to having ceramic coated headers.