• Adapts a 1. 11/16" 44mm bore small block TBI (Throttle body injection) to a Holley pattern 4 barrel manifold.
• Includes gaskets and hardware as pictured
• Bolt pattern is 5.16 x 5.620 1' thick. Most aftermarket 4 barrel manifolds and many factory manifolds use this pattern.
• Bores are angled to streamline the flow from the wider throttle body to narrow 4bl intake. Many adapters don't offer this and create a large step causing drivability and performance issues. Many blame it on the computer when it's really the adapter.
• Made very ridged to avoid sealing issues over the long run. Features stainless steel thread inserts
• USA made. 
• We ship in 1 business day many times the same day payment is received. 
• Thanks for reading this.