I'm thinking there must be different cams, hard to believe so many different specs come up on them. I kept finding the specs you just listed and .551 lift.

I have a 6.1 I'm putting together and deciding if I should keep the stock cam or go bigger... also using a 6.1 cam in a 5.7 turbo build. Ultimately, need specs to figure out if the springs are good for an upgrade.