i have a set of edelbrock mufflers on my 55 chevy part number 5526. Does anybody have any information on these mufflers? What mufflers would you recommend for a street strip car? I was looking at the DNA's, magnaflow and aerochambers. These edelbrock mufflers i got for 20 bucks from a friend and don't know if their holding the big block back in terms of flow. All the info i found on them was for towing and rv's.