Trick Flow® 5.0L R-Series EFI NOS hardware kits include the hardware that you need to run nitrous with your Trick Flow® manifold.Kits include: * Five 5/16-24NF 12 pt. nuts* Two 5/16-18 x 7 1/4 in. long chrome socket head cap screws* Two TFS R-Series upper/lower flange gaskets* Five 5/16 x 3 in. long studs