Fuel Injection Kit

Fitment and Product Information. Fast Electronics 146027-KIT LSXR LS3/LS7/L76/L99 Billet Fuel Rail Kit. Brandname: Fast Electronics Part Number: 146027-KIT Product Details. FAST LSX high-flow billet fuel rails feature a larger internal diameter that is designed to dampen the pulses and provide increased fuel volume, ensuring that your fuel injectors never run dry. They are manufactured from high-strength billet aluminum and