These solenoid brackets are specifically designed for carbureted or carbureted style EFI intakes with a 4500 flange. Two Solenoids mount in the front and rear of the intake offset on either side. These solenoid brackets are built strong enough to withstand engine vibration to keep your solenoids securely in place while giving your system a custom anodized show quality finish. These solenoid brackets are designed to place the solenoids slightly lower than the intake inlet and are good for use with the Nitrous Outlet Puck system, spraybar systems, and single nozzle systems.