Notched EFI Fuel Tank Kit with 255 LPH Pump for LS-Swapped 1970 Chevy Monte Carlo
When converting your 1970 Chevy Monte Carlo to EFI on an LS setup, the 1970 Monte Carlo EFI Fuel Tank Kit - 255 LPH Pump - Notched solves the challenge of reliable fuel delivery at all engine speeds with its EFI compatible reservoir and 255 LPH Walbro pump. Engineered for the A-body chassis, it features a notched design that preserves classic lines while clearing exhaust headers and wider tires without extra trimming. Durable construction and a precision sending unit maintain accurate fuel level readings under hard cornering, and the included vent filter reduces vapor buildup for safer operation.
Notched Profile Enhancing Exhaust and Tire Clearance
The notched contour of this fuel tank is purpose-built for the A-body 1970 Monte Carlo, offering seamless integration without altering the car's classic silhouette. By creating strategic cut-outs beneath the rear floorpan, the tank provides additional room for oversized exhaust headers and wider rear tires, eliminating the need for chassis trimming. This design maintains the factory mounting points and ensures a tight fit against the original crossmember, so alignment and ground clearance remain factory-correct even with modern suspension tweaks.
Robust Fuel Delivery with 255 LPH Walbro Pump
At the heart of the kit lies a 255 LPH Walbro pump engineered to support engines up to 550 horsepower without drop off at high rpm. Its self-priming design ensures rapid system fill-up after startup and consistent flow under heavy acceleration or sustained high-speed runs. The pump's internal check valve prevents fuel from draining back into the tank when the engine is off, guaranteeing immediate pressure on demand and sharp throttle response from the very first press of the pedal.
Precision EFI Integration and Fuel Level Monitoring
This conversion kit transforms the original tank into a fully EFI-ready reservoir, complete with a precision sending unit calibrated for electronic fuel injection demands. The sending unit features a low-friction float and multi-point resistance curve, delivering accurate level readings even during hard cornering or sudden stops. By coupling the pump's steady pressure output with accurate level feedback, the LS engine benefits from stable fuel delivery and consistent mapping performance under all driving conditions.
Integrated Vent Filter for Vapor Control and Safety
To address vapor buildup and potential evaporative emissions, the kit includes a dedicated vent filter that captures fuel vapors before they escape into the environment. This component fits directly into the stock vent line, ensuring pressure remains balanced during changes in temperature or fuel load. The result is a safer operation during fill-ups and parking, plus reduced risk of vapor lock at the track or on hot summer days.
Count on consistent fuel delivery and solid reliability. To complete your Larger capacity fuel pump Kit at 400 LPH consider our 1970 Monte Carlo 400 LPH pump Tank Kit (notched).