Yes I have. Yes it is easy.
~ turned me on to Mike Coe who has a design called a Coeshow cam. He has Webcam make them. You will need new rocker arms but your stock springs work fine.
I combined the coeshow cam with a Wiseco 11:1 piston and wow!!!
I don’t like the 428; it takes away too much top-end. I have one if you want it $100 + shipping; only used twice. You should get a 14 tooth primary instead, they are cheep.
