Tag Archives: 550-409

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Holley Fuel Injection System 550-409 950 cfm Tumble Polished

Holley Fuel Injection System 550-409; 950 cfm Tumble Polished. Plug and play with factory sensors and coil sub-harnesses. Bosch wideband oxygen sensor included. Controls fuel and spark. Pre-calibrated for no-hassle installation and tuning. Fully adjustable through included 3.5 full color touchscreen. Get all the great features of Terminator Throttle Body Fuel Injection systems in a bolt-on system for GM’s popular

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