I just ordered a Bullet solid roller for my 496 build, from Tim. He was great to deal with...I should have it this Friday, when I start assembling the short block.
Hear nothing but good about their cam's and recommendations. Have spoke with them a few times myself before on various occasions and they really know their stuff and explain everything really well. Turn around time is good too! Ask for Tim, he seems to be the man to talk to there and rightfully so