Holley 700 double pumper 4150, choke milled off, flows 750+cfm, mechanical secondary, 2 corner idle, br*** threaded jet extensions with notched secondary float, totally dis***embled and rebuilt with Holley rebuild kit, wet tested, non stick gaskets, power valve protector, 6.5 power valve, has holes drilled in ****erflies for more air flow at idle, came off my 347 stoker with very large valve overlap, street or strip, thanks for looking!