I met Grumpy once at the 1972 NHRA Fall Nationals in Amarillo Texas (old airport site). He was there with his small-block Pro-Stock Vega! He had his plugs out reading them and adjusting his lifters. I still have some print photos from that 1972 event (need to scan them).
I also remember Sox & Martin was there, but I can't remember who won Pro-Stock at that event (too long ago). Grumpy was always my hero, because I've always been a Chevy racer!
Very sorry to hear about him passing.