James, I read your post regarding your working with Edelbrock. It sounds like a good move, they have a great product line and if I may add a suggestion; look at their mufflers. They flow better than Flowmaster and are a bit smaller in size. They're also available in stainless, polished and not polished. I used one when I was running my turbo set up and was very satisfied. They sound powerful but without that slightly hollow sound produced by the Flowmasters. Best Regards, Bruce Benson