422 dyno fail

My 414 made 460hp@5300, 510ft;lbs@3900. It has a 850 Holley, worked Air Gap, ported Mopar performance iron heads, advertised to flow [email protected] lift. 1.6 PRW rockers, Comp 242/252, .558/.572 on 106 cam. Step dish 9.4 comp. pistons, TTI 1 5/8 to 1 3/4 step headers. I would have expected this engine to at least match mine for torque if not hp as well. Glad you got it sorted out. Mine is a blast to drive. Especially behind a 4 speed and 3.55 gears. Trying to figure out how to reach over 500hp now. Thinking I need more cam, single plane intake, 1 7/8 headers.