Though the factory rocker arms are more than enough for the power we’re making, pal Danny Jesel suggested that I use his 1.8:1 Pro J2K shaft rockers instead. OK, I couldn’t resist. Besides, when the rocker cover comes off somebody might be impressed (me!). The insert image reveals the rarely seen underside of this billet charm. Though not nearly as apparent as the OEM pieces, the intake rockers are canted slightly. Custom-built Jet-Hot–coated headers employ 17/8x25-inch primary pipes terminating in a 7-inch-long collector.