Said this before, but have yet to see a serious race effort with MS on it.
Your definition of serious race effort is probably a lot different then most people not in the business. The most serious use of an MS3 I have found is Lee Sicilio's twin turbo hemi daytona that did 283mph on the salt flats a few years ago.
The support system is the biggest killer of the MS3, you can't phone up a hotline and get the help you need when you need it. That alone is worth the extra money for the Holley
This is kinda what I was getting at. The MS seems to be more science project type stuff. Build your own, do your own legwork, learn a lot about EFI likely, but more or less be on your own. Someone that is very familiar with EFI can make anything work. The box only does what you TELL it to do. Navigating the software and being ABLE to tell it what to do seems to be most people's issue. Electro-Motive was much the same way. It worked fine, if you totally understood the system, but the only guy that seemed to was the one who designed it and he was not a racer. From jump, it was a goal to make the Holley very user friendly and not have so much of it be "EFI speak". You don't want the average guy overwhelmed when he opens the software and sees terms he has no idea what they mean. Holley tech is also very good, plus we teach classes on it at the plant. From the basics, to advanced levels. The guy who teaches it, is not an engineer. He is just a guy like the rest of us and makes it easy to understand. The classes have hands on training as well, where you go out in the Power-Lab and makes changes on a running engine and see what does what
