The Nitrous Express Holley Hi-Ram plenum plate system installs between upper and lower Holley Hi-Ram manifolds for a quick and clean fit. Nitrous and fuel inject from the runner side for direct-port-like distribution; single-stage jetting ranges from 50–500 WHP. The billet plate features machined passages, and the kit includes billet and carbon-fiber solenoids, stainless braided lines, wiring, switches and all hardware, plus a 10 lb nitrous bottle for a complete installation.
Nitrous Express Holley High Ram Plenum Nitrous Plate Kit w/10lb Bottle