[csx4910]

obviously Roush would have the brand they have now or be the size company without a lot of happy customers, i am just not one of them. Some companies get so big they lose sight of the people that got them there in the first place. I would think twice about doing a Roush motor but I am obviously biased. The problem with their F.I. system is that it is proprietary and no one else but them can touch it for the most part. Other system's are much more user friendly I am sure. I would for sure not be able to recommend the 511 but i cannot speak for the 427.
Ron