as far as the 51 sprint car,it was bought by my dad (bud graham) and he ran the car in 1976 as a blue 51 with billy englehart,then in 77 it came out white and englehart,howerton and brief single events with gilly cassella,and dana carter.
id love to find it,we sold it at the end off 77,so if anyone has info,please let me know