Holley EFI Universal 1000 CFM 4-Barrel Throttle Body

The Holley EFI Universal 1000 CFM 4-Barrel Throttle Body is a 4150-style square bore throttle body for multi-port EFI systems. Use it to replace a carburetor on a square bore intake manifold. It is built for high-horsepower street and race engines. The airflow rating is 1000 CFM.

Key Features:

• Standard square bore mounting pattern fits many intake manifolds
• Flows 1000 CFM, which suits high-horsepower engines
• CFD-modeled air entry area speeds up incoming air for better velocity. Holley says it shares the air entry design used on NASCAR Sprint Cup Series cars.
• Integrated throttle position sensor (TPS), idle air control (IAC) and intake air temperature sensor
• Hi-flow IAC passages help keep idle stable on larger-displacement engines
• Ford automatic transmission kick-down lever
• Integrated GM 700R4 kick-down location, so no adapters are needed
• Includes the vacuum ports you need: (1) timed spark, (2) 3/8 in. and (2) 3/16 in. full manifold vacuum ports
• 1.75 in. throttle plates on PTFE-coated throttle shafts for high flow and a smooth feel
• Die-cast aluminum construction for strength and low weight

This throttle body is an air valve only and does not include fuel injectors. It works with an aftermarket multi-port EFI system and needs a compatible EFI controller. It is not compatible with a factory TBI computer.