Holley 45-457 choke plate shaft. A metal replacement part for Holley carburetor models 4150 and 4160 series. Holley 45-457 Holley carburetor choke plate shaft 45-457 We welcome CANADIAN customers! For ordering information, click on "Orders To Canada" at the top left side of this page. We will not ship to freight forwarding - expediting companies. PAYMENT METHODS: PayPal, Visa, Mastercard, Discover, American Express, money orders.