FiTech EFI Tuning Forum MenuForum NavigationForumMembersActivityLoginRegisterForum breadcrumbs - You are here:ForumPost History: tomicaminoPlease Login or Register to create posts and topics.Post History: tomicaminotomicaminoUserProfilePost HistoryThe return springs are very stiff, I have 1200 pa system with two units and throttlecable is really …In: TBI return springs5 months agoHi, seen some videos about two step settings. Has anyone tried that and if have, do someone have a w …In: 1200p/a two step6 months agoWas 144 weiand, now a little upgradeIn: 1983 El Camino sbc 350 6-71 blower fitech 1200 p/a6 months ago