That header (shorty) looks like the runners sit real high. Looks to maybe be taller than the Pacesetters. What kind of heat problems might this cause? I woudl think you will need to trim the hood liner for this one, as you should on the Pacesetter shorty.
All I know is Edelbrock makes great quality headers and equipment. Had a manifold and headers on my old 79 Trans Am and they were excellent.