tapered carb spacers are known for there ability to provide enhanced signal at the booster. enhancing the signal at the booster allows for better fuel
Carburetor Spacer - 4150 / 1.00 4-Hole Tapered – Wilson Manifolds
Braswell Hi Flow Lighten Carburetor Spacer with 1.800 hole - Joey Arrington
WILSON MANIFOLDS CARBURETOR SPACER - WM-003150 - Fuel & Air System
Tapered Carburetor Spacers – Wilson Manifolds
Hedman Performance Group
4150 Carb Spacer
Allstar Performance ALL25994 4500 1 4-Hole Hi-Flow Carburetor Spacer : : Tools & Home Improvement
Speedmaster PCE120.1009 2 Aluminum 4150 CNC Machined Carburetor Spacer – JBs Power Centre
Edelbrock Carburetor Spacer 8711