Aluminum Carb Adapter Holley to Quadrajet Q-Jet and Spreadbore [2692] Speedmaster ring and pinion preload

Speedmaster ring and pinion preload spacer

if you want more airflow then you should grab up one of these Speedmaster X-Stream air flow top plates

chrome plated for a shiny finish

They have a minimum wall thickness of

they can be reused without damaging the fitting

Aluminum Carb Adapter Holley to Quadrajet Q-Jet and Spreadbore [2692] Speedmaster ring and pinion preloadSpeedmaster carburetor adapters are designed to allow you to mount most any carburetor on most any manifold, to save you the expense of buying a different manifold or carburetor. Made from high quality cast aluminum, these adapters provide a smooth transition from carb to intake for trouble free operation.