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Vehicle Info Needed70074 Loaded Intake Manifold LS3 750 HP Aluminum with 102 mm Throttle Body and 55 lbs./hr. Fuel Injectors
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Lowest Price GuaranteeFITech 70074 Includes:
- Intake manifold
- Throttle body
- Injectors
- Fuel rail kit
- IAT sensor
- IAT motor
- Throttle position sensor
- MAP sensor
FAQ:
How much fuel pressure does FiTech EFI need?
- FiTech EFI systems like the FiTech 70074 require around 58-60 PSI of fuel pressure for optimal performance. Maintaining proper fuel pressure ensures efficient fuel delivery to the intake manifold, enhancing engine performance.
What is the difference between FiTech and FAST intake?
- The difference lies in the design and features. While both offer EFI solutions, FiTech focuses on user-friendly, self-learning EFI systems, whereas FAST intake systems often cater to higher-end, performance-oriented applications with additional tuning capabilities.
Why does my FiTech bog down when I accelerate?
- Several factors can cause a FiTech EFI system to bog down during acceleration, such as incorrect fuel pressure, inadequate airflow, or improper sensor calibration. Checking and adjusting these aspects can resolve acceleration issues.
Which is more reliable, EFI, or carb?
- EFI systems like FiTech are generally considered more reliable than carburetors due to precise fuel delivery, better fuel economy, and improved starting in various conditions. They offer easier cold starts and adaptability to changing environmental factors.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
The Ultimate Fuel Injection System for GM LS-Based Engines
FiTech's Ultimate LS EFI Induction Systems are self-tuning electronic fuel injection systems for LS-based engines, designed for the do-it-yourself hot-rodder or professional tuner. These systems are a complete kit with everything needed to complete the induction system of the popular GM LS engine.
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Transform your LS-powered build with the next evolution in fuel delivery technology — the FiTech Ultimate LS EFI Induction Systems. Designed for everyone from weekend builders to seasoned performance tuners, these systems combine cutting-edge EFI control with bolt-on convenience, giving your engine smoother power delivery, improved fuel economy, and rock-solid reliability. Whether you’re daily driving, cruising, or competing on the strip, the performance and versatility of this system are clear from the first start.
The heart of the upgrade is the fitech ultimate ls controller, a fully programmable engine management system optimized specifically for LS architectures. Its adaptive fuel and spark control automatically adjusts to changes in conditions and power adders, so you spend less time dialing in and more time enjoying responsive throttle and confident acceleration. With on-screen tuning and built-in data logging capability, you can fine-tune parameters easily without external gadgets or guesswork.
One of the biggest advantages of an efi for ls engine is seamless drivability in every situation. Cold starts become reliable, idle transitions smooth, and throttle response sharp — eliminating common carburetor headaches like stumble or hesitation. For late-model swaps and retrofits especially, this system brings modern control to older chassis without compromising character.
Installation is straightforward with quality hardware and detailed instructions included, making it achievable for experienced DIYers and professional shops alike. From street cruisers to high-output performance builds, this ls efi kit gives you a complete, dependable induction solution that enhances power, efficiency, and overall engine confidence — a smart upgrade for any LS enthusiast.
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