300-267 Holley Mid-Rise Plenum Base Adapter Kit - GM LS1/LS2/LS6
The Modular Mid-Rise intake utilizes the popular Holley LS1/LS2/LS6 cathedral port Mid-Rise 2 x 4 intake manifold along with a purpose built plenum base adapter and a Holley 92MM EFI plenum top which converts it into a Mid-Rise EFI intake manifold.;Provides great performance to 6500 rpm for street/strip performance applications while providing the look of a racing EFI intake manifold; Unique modular design allows the combination of a traditional dual-plane layout with an EFI manifold plenum to produce great mid-range torque without compromising top end power; Great for supercharged or turbocharged engines; Power band from 1500-6500 rpm; May require an aftermarket hood for some vehicle applications.; Cast aluminum construction; Intended for use on all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads (recalibration of the ECU may be required when using this intake manifold design with OE ECU).;
