O.S. Engines LA Back Plate Upgrade FEATURES: New Improved Version, with cover plate and metal needle valve bracket being two separate pieces; Cover plate is made of black plastic INCLUDES: One Cover Plate One Separate Needle Valve/Bracket Pre-Installed Needle Holder REQUIRES: Cover plate is held on by four 3 x 8mm Philips head machine screws, use OSMG8697; Needle (OSMG7017) and ratchet (OSMG8172) COMMENTS: For Co