VICTOR E-TEC EFI (2500-8000 RPM) The 29145 is a Vortec/E-Tec version of our popular Victor E 23° EFI manifold and is intended for EFI applications like our Pro-Flo 3 EFI system. This manifold features a similar deep plenum and tapered cross-sections like the Victor E 23° and is compatible with standard, square-bore, throttle bodies. This manifold is one inch shorter than the existing Super Victor E-Tec EFI #29135. It also has provisions for water bypass so it can be used on Vortec engine blocks and accepts OEM alternator brackets.