Monthly Archives: April 2021

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Holley 550-520 Super Sniper EFI 650 HP Fuel Injection Kit

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 Super Sniper also has full nitrous control built-in? That’s right, no need for

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