They are both Hughes cams. Unfortunately, he dumped all his gen 3 availability.
The 426 is 4.08 bore, 4.08 stroke. Heavily modified early heads. Johnson juice lifters, stock rockers and shafts, Stanke collars and tie bars. Tall Ritter drag pak intake. Had a 1050 Dominator on when I raced it in my Dart. I now have a 1000 cfm competition series Thermoquad that will take its place.