Manifold, rpm ford 351w

Edelbrock part #21813 Performer 351W intake manifold is designed for street 351 c.i.d. Ford Windsor V8's. Will not fit Boss 351. Aftermarket 4-bbl carbs are not compatible with Ford Auto Overdrive Transmission (AOD) unless used with Lokar bracket SRK-4000. For more info call (865) 966-2269 or go to www.lokar.com. This manifold offers a durable black power coated finish for long lasting protection and a distinctive look.