FiTech EFI Tuning Forum MenuForum NavigationForumMembersActivityLoginRegisterForum breadcrumbs - You are here:ForumPost History: BiglakepickerPlease Login or Register to create posts and topics.Post History: BiglakepickerBiglakepickerUserProfilePost HistoryEngine back fires through intake on hard acceleration low speed, and at speed on flat road surges ac …In: surging at speed no load3 years ago
