It's very unlikely anything is wrong with your valve train stuff. It is what it is, grind away or use a good dinky pushrod. That is pretty much the options.

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8