Holley sniper vs. Edelbrock pro flo

I'll see if I can get more info on what cam I actually have. I plan on contacting both holley and edelbrock and seeing what they have to say about each system. I've seen many videos on both systems and they both have basically the same strategies of tuning like 67dart273 mentioned. But there was one additional question that the edelbrock system had that I didnt see on the holley setup which was the computer asking "how aggressive of a cam is installed." Which makes me think edelbrock may not get confused by poor vacuum signals like other systems would OR holley just does that internally and tries guess your cam size with out asking you about it. Hence why I think I need to speak with a holley tech