Holley EFI Fuel Injection Throttle Body for 1900 Chevrolet LS Small 112-589

Holley’s BILLET LS Throttle Bodies are the MOST FEATURE LOADED available. Holley went back to the drawing board and built the ultimate air valve for your LS engine. Features a 90 Millimeter bore and a low RPM drive friendly taper. Innovative features like Idle Bleed Adjustment, TPS CLOCKER, and closable PCV Passage Valve, make them the ultimate throttle bodies for ease of installation and tuning. Regardless of whether you have a stock LS engine, turbo, supercharger, or a big cam engine sucking gulps of air, Holley’s throttle bodies are maximized for your application. The barrier protection of the BLACK ANODIZED finish also offers up a modern tech look!

More Features

• TPS Clocker Allows The TPS To Be Rotated Back Into The ECU's Required Idle Voltage Range. Modified Engines No Longer Suffer From Problems Related To TPS Voltage
• Idle Bleed Allows Adjustment Of Your Idle Without Affecting Throttle Position Or TPS Voltages At Idle!
• PCV Passage Valve Closes To Accommodate Forced Induction Applications! No More Plugging To Block Off PCV