These Trick Flow® 5.0L Street EFI NOS hardware kits include the hardware that you need to run nitrous with your Trick Flow® manifold.Kits include:* Four 5/16-24NF 12 pt. nuts* Two 5/16-18 x 7 in. long 12 pt. bolts * Two TFS Street/Track Heat upper/lower flange gaskets* Four 5/16 x 2 5/8 in. long studs