single plane race intake manifold for sale “Holley 300-256 Single Plane Race Intake Manifold, LS1, LS2, LS6” has been added to your cart. View cart Showing all 2 resultsSorted by popularity Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Holley 300-256 Single Plane Race Intake Manifold, LS1, LS2, LS6 $567.00 Add to cart Holley 300-256 Single Plane Race Intake Manifold, LS1, LS2, LS6 $525.00 Add to cart