zoomies vs step headers
how much if any et loss whould i see if i use 2 1/4 zoomies vs a 2 3/8 stepped to 2 1/2 tube into a 4 1/2 merge collector on my 582 bbc? i've used zoomies on my kb 526 blown alky(1800 - 2000 hp oddy motor)but never on a na motor. love the looks and sound of zoomies but would like imput thanks jeff