Edelbrock EFI Manifold Pro Flo XT GM LS1

Edelbrock part 7139 Pro - Flo XT LS1 EFI intake manifold is engineered with a large plenum and tapered runners to deliver maximum horsepower and broad torque band throughout the rpm range (1500 - 7000 rpm). Features a 90mm throttle bore opening and 2.75 port exit height. This manifold produced 30 more horsepower over a stock LS6 manifold at 6500 rpm. The Edelbrock Pro - Flo XT LS1 7139 EFI intake manifold Accepts Pro - Flo XT throttle body 3869 or adapter 2737 and standard LS1 throttle bodies. Compatible with LS1 Fuel Rail Kit 3629 (sold separately), which features - 6 AN inlet and outlet.