Are you sure your kickdown linkage or cable is adjusted properly? Sounds like that could be the problem. If the shifter linkage is keeping thetrans in the proper position for drive, the kickdown is the problem.
84 D150 440/727 79 /6 swb D150 1964 A100 window van. Just because it has spark plug tubes doesn't mean it's a Hemi.
If ya haven't been there, ya just wouldn't understand.