I bought two bare sets and one complete set for the first time gambling I would find a buyer that wanted a stock 2.02 valves sets ported. It worked out great for both of us and he picked them up yesterday. Although advertised as having double springs set up for a .600 hydraulic roller cam we were able to us them on his .512 lift cam by removing some shims. The guides were spot on as have the six other sets I’ve worked on. The 10 degree retainers and keepers put Edelbrock 7 degree stuff to shame. I sweat it’s comp cams stuff.