If you want a cam that performs well and sounds good check out the Vinci cams. I have a 216/224 .551/.551 in my LS1 and the thing sounds like a much bigger cam. It lopes more than the 228R my cousin had in his LS1. It's also very strong in the low-mid rpm levels. This cam would kill in a 4.8. Don't go too big or you will regret it...