FiTech EFI Tuning Forum MenuForum NavigationForumMembersActivityLoginRegisterForum breadcrumbs - You are here:ForumPost History: Sonicblue68Please Login or Register to create posts and topics.Post History: Sonicblue68Sonicblue68UserProfilePost HistoryThat's strange... I have a 331 that's supercharged and it does the same to me. It breaks …In: Break up under 3000RPM6 years ago