FiTech EFI Tuning Forum MenuForum NavigationForumMembersActivityLoginRegisterForum breadcrumbs - You are here:ForumPost History: tlcPlease Login or Register to create posts and topics.Post History: tlctlcUserProfilePost HistoryHas anyone tried taking the springs loose on the primary and secondary shaft and replacing it with t …In: Stiff throttle spring4 years ago