Fuel Injection Kit

Holley 550-520 Super Sniper EFI 650 HP Fuel Injection Kit GOLD Turbo/ Blower. Holley Part Number 550-520. Introducing Holley Super Sniper EFI! Looking to convert your blow thru carbureted turbo engine to EFI? Holley offers a 650 HP four injector version for lower horsepower applications with a power adder or someone just needing additional sensor inputs. Did we mention the