Holley EFI Intake Manifold - Square Bore - Single Plane - Rectangle Port - Aluminum - Small Block Chevy Dash Accessories This helps prevent blown head

This helps prevent blown head gaskets

Blue Chrome or Chrome

Lightweight spring cup design

this flat one-piece guide plate set is designed for Pontiac 350-455 and AMC 290-401 engines with 7/16" studs and 5/16" pushrods

Carburetor Throttle Stud

Holley EFI Intake Manifold - Square Bore - Single Plane - Rectangle Port - Aluminum - Small Block Chevy Dash Accessories This helps prevent blown headModification to the valve covers may be required when this manifold is used with some types of cylinder heads. The fuel rail inlet threads are 9 16 18 for a 6 port. 4150 Square Bore Mounting Flange Power band: 2500 7500 RPM Height: Front 4. 18", Rear 5. 28" Port Size: 1. 92" height 1. 20" width Lower Throttle Body Mounting height to help with hood clearance. Holley laser etched logos on the black coated fuel rails and bracket assortment are included