With the Performer RPM E-Boss 302 manifold number 7129, you can build a mock Boss engine by using a standard 302 block and Edelbrock Performer RPM Cleveland cylinder heads number 61699. For high-performance street and competition, our dual-plane design makes outstanding power from 1500 to 6500 rpm. The Cleveland port layout and intake bolt hole pattern fit both 2V and 4V heads. Features include 8. 2in. deck height, Windsor end rails, water neck and distributor clearance plus front and rear water bosses. Match with an Edelbrock Performer or Thunder series AVS carburetor. Edelbrock carbs will work with Ford automatic overdrive trans when used with Lokar bracket SRK-4000.