Unported head quickness?

Had a 318 72 Dart all that was changed was heads milled to bring up compression , Holley street dominator , 850 thermoquad off a 1974 440 Road runner with hooker headers ran a 14.4 @ 91 . 904 with 8 3/4 with 3.23 , G 60 14 Kelly Springfield tires . 106 octane Sunoco gas

77 Ramcharger 4x4 with 440 six pac block rods and crank , 12.5 TRW forged pistons cut down to 11.5 , 2" hooker headers and a Holley 850 dp ,Torker intake , not sure the cam as bought the motor off a bankrupt race shop for $800.00 , it was built for a super stock Barracuda . I needed an electric Vacuum pump for the brakes . Ran a 13.6 @ 104 with 3.55 and 33 inch tires . In low range nothing could keep up with it until 80 mph , the top end in low range .The off road tires sounded like a retarded St Bernard doing a burnout . Had the truck from 1977 - 1993 .