Replace your Rochester with Fuel Injection

Holley has expanded their line of critically acclaimed self-tuning EFI systems to include the Sniper Quadrajet EFI Unit (capable of supporting up to 500 HP). It is perfect for classic GM vehicles initially equipped with a Rochester Quadrajet carburetor. The self-tuning module makes it an easy, no-hassle way to get the most performance out of your automobile without a laptop computer. Just answer a few simple questions about your vehicle configuration, and the module creates the base map, then starts tuning on its own while you drive, no computer required.