All K-series engines Works with both N/A and Forced Inductions Notes: 8 ORB Feed Ports (Top 2 ports) and 6 ORB Return Port (Bottom) 1/8NPT Port for Vacuum 1/8NPT Port for pressure gauge E85 Safe Includes Stainless Steel Mount. Fittings included in kit – 8AN Port Plug, 6AN to 8OR, 4AN to 6OR, and 100psi Gauge. Our FPR is designed for any applications. The 8ORB feed and 6ORB return support most street setups and basic boosted cars without issue. Comes with an adjustable bracket to easily mount it anywhere. A high quality E85 safe diaphragm is used internally, which is the most important piece.