Main Jet ended being a 430, Bennie who did the dyno needs new glasses, as for +- 2 hp I can go with that , but as each time we dynoed the modified pipe we picked up HP and Torque on the curve graphs, could have just have been close to 67HP instead 65HP, again this was only a personal project with a bit of ribbing to RK, like my 08 pipes selling are going to slow his sales.........
(I know I need to get thick skinned when the pipe banter starts, but FYI process in motion and 10 pipes should be ready by the end of the month)