Description: Designed as a replacement for Holleys 4150 carbs Race Demon OT carbs are specially designed for oval track performance. They provide effortless drivability on dirt or asphalt and have customized metering circuits developed for rapid throttle response and excellent mid-range and top-end power. Other features include removable zinc alloy boosters for additional tuning opportunities and the ability to switch easily(more)

Description: Designed as a replacement for Holleys 4150 carbs Race Demon OT carbs are specially designed for oval track performance. They provide effortless drivability on dirt or asphalt and have customized metering circuits developed for rapid throttle response and excellent mid-range and top-end power. Other features include removable zinc alloy boosters for additional tuning opportunities and the ability to switch easily between alcohol and gas et metering blocks to eliminate porosity adjustable air bleeds float bowls with sight glasses to allow you to visually monitor fuel levels and sculpted air intakes.(minimize)