Just came off the dyno with a new 468. Won't get into a ton of detail, but I will tell you this. 468, Pro Topline heads by Abbott Racing Heads, Super Victor, one Dominator on gas, no juice.......... 858 HP @ 7200 RPM // 696 lb/ft torque @ 5900 rpm. The heads are 24 degree Chevy design. The heads and intake were fully ported and flowed by Abbott Racing Heads. Getting a blown alky 509 ready next, then a couple of carbed, nitrous 540's with the Pro Topline heads. Hey Steelcomp, had to get back to a little R&D after hearing about yours. That's about 50 more HP than we'd ever made with a 468 with a single carb. BTW, a box stock 8896.