Description: Designed for 1986-95 Ford Mustangs with 5.0L V8 using Edelbrocks 3821 lower manifold this upper manifold is for nitrous and bracket racing applications. It uses the same base as the Performer 5.0 but the upper plenum has shorter larger runners for more power in the 5000 plus rpm range. Both plenum and cover are powder-coated light titanium gray and sold as one item.