I am in the process of revisiting the suspension, and I am going to put in some more aggressive mufflers. I have some shitty ravin mufflers that have blown out from a backfire in, and they sound really poor. Even new they didn't sound mean at a higher RPM. I am looking for something really mean but that won't drive me crazy while cruising. My dad's 67 chevelle has headers and magnaflow mufflers and it sounds fantastic. I am on stock manifolds (also stock 389), but I am thinking that I can get something better than what I currently have. Would like to stick with magnaflows, but I am certainly open to ideas. Thanks in advance!