Performer Ford 400 EGR Intake Manifold

Edelbrock part #3771 Performer 400 EGR intake manifold is designed for 351M/400 Fords in one of the three following configurations: 1) OEM 2V carb and EGR system with supplied 2V EGR spacer 2) 4V EGR system with either an Edelbrock #8053 4V EGR spacer, or an Edelbrock #8017 and Ford #E4ZZ9A-589E 4V EGR spacer 3) For off-highway use, non-EGR 4V system with an Edelbrock #8714 4V spacer.