Overview Reviews Product Description 300-207 Holley EFI Holley Hi-Ram Intake Plenum Top Only, 2 x 4150 Fits Holley Hi-Ram Manifolds Product Videos Custom Field Product Reviews Write a Review Write a Review × 300-207 Holley EFI Holley Hi-Ram Intake Plenum Top Only, 2 x 4150 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *