Very upset with my dyno numbers. 398hp/401 torque. I would think headers, CAI, UD pulley, full bore TB, aluminum 1 piece driveshaft, and 3000 stall conv. would be better than that. I understand dyno's are for tuning, and the numbers shouldnt be taken seriously, BUT still. Was running a little lean, t/v cable wasnt disconnected, and the NOS spark plugs were still in there. Appointment made at JMB Perf. to cam this pig and dyno for N/A and the NOS...! Hope it helps..!