Edelbrock part #2111 Performer 90 degree V6 intake manifold is designed for street and marine 1985-95 200-229-262 c.i.d. (3.8 and 4.3L) Chevy V6s. Dual bolt pattern water neck fits both automotive and marine applications. Produced 18 more horsepower than an older manifold design on 4.3L marine engine. Will not accept stock automotive carbs or 262 T.B.I. unit. Series Performer Material Aluminum Finish Satin Gasket Or Seal Included No Vehicle Model Chevrolet Availability Note Available to Order Warranty 12 Months RPM Range Idle-5500 RPM .