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The easiest EFI system you'll ever install, FAST's EZ-EFI Self-Tuning Fuel Injection Kits bolt to any 4150 carbureted engine up to 650 horsepower in just one afternoon (no manifold replacement needed). Simply hook up the system, answer the Setup Wizard's questions on the handheld unit, and EZ-EFI tunes itself as you drive! EZ-EFI works with any ignition and provides integrated diagnostics. For more aggressive applications, the EZ-EFI Dual Quad Upgrade Kit can handle 1200+ horsepower engines with dual quad carbureted manifolds.

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