Overview Reviews Product Description 300-136BK Holley EFI Holley Single Plane EFI Intake - GM LS3/L92 - Black Black Ceramic Coated, Single Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS3/L92 style rectangular port cylinder heads Product Videos Custom Field Product Reviews Write a Review Write a Review × 300-136BK Holley EFI Holley Single Plane EFI Intake - GM LS3/L92 - Black Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *