FiTech EFI Tuning Forum MenuForum NavigationForumMembersActivityLoginRegisterForum breadcrumbs - You are here:ForumPost History: johnnyrottenPlease Login or Register to create posts and topics.Post History: johnnyrottenjohnnyrottenUserProfilePost Historythanks i heard they ran better on a single plane manifold in dtead of a dual plane thanks BHUILDERMA …In: new to a fitech6 years agohi guys new to forum recenly bought a 400 hp unit off a running cr i am building a 1968 fire bird ra …In: new to a fitech6 years ago