The extra torque will increase the stall, especially on the 500, i'm suprised how low you shift with that cam, i shift at 62-300.
How many runs were on the motor ?
Mick


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36