• Fits standard 4 barrel racing carburetors
• Used to adjust carburetor height or meet restrictor rules
• Ideal for crate engine and restricted racing classes
604 Crate Engine Carb Spacer
WM10604
• 1/4" tall spacer, flared into the intake gives more bottom end power
• Designed for 604 crate engines, NOT IMCA LEGAL
4 Barrel Carb Adapter
WM10750
• 1" tall spacer flared and swirled
• Flared design improves airflow into intake
4 Barrel Carb Restrictor
WM10100R - 1" Bore (Eco Mod Concept Engine)
WM101125R - 1-1/8" Bore (Eco Mod 602 Crate Engine)
• 1" tall restrictor plate
• 1" or 1-1/8" bore depending on engine package rules
**THESE DO NOT COME WITH MOUNTING HARDWARE**