Allows you to install a 4-bbl carburetor on an LS-Series engine with cathedral ports (LS1, LS2, LS6)
Cast-aluminum open-plenum intake manifold accepts a 4150-style square-bore carburetor
Bosses for EFI injectors for custom applications
Bolts and instructions supplied
NOTE: LSX Ignition Controller P/N 19355418 is required for carbureted applications.
