Here is my dyno sheets from a 6 or 7 years ago (upgraded to MSD ignition over MP stuff, also added Comp Cams adj rockers) where I got 2 pulls on a chassis dyno at the Mopar show, I didn't think it was bad, especially for bone stock heads and lower compression for street :glasses7: :burnout:
1972 340, 650 Holley DP, Super sucker 1 inch carb spacer, Mopar M-1 single plane intake, 505 Isky cam, Rhoads lifters, Comp Cams push rods, Comp Cams aluminum roller rockers, stock 340 heads 2.02/1.60 Milodon valves, 1970 340 steel crank, stock rods, .30 speed Pro forged pistons. The rotating assembly has been balanced. Moroso deep oil pan, HV oil pump, stock windage tray, Hooker Super Comp fenderwall headers, 2 1/2 dual exhaust with flowmasters. Mopar Performance distributor, MSD 6al ignition box and Blaster 2 coil, Accel 8.8 wires and NGK plugs.