Engine Specifications: Displacement: 350 c.i.d.; Horsepower: 315 hp; Torque: 372 ft-lbs.; Compression: 9.0:1; Block: New 4-bolt main w/ 2-piece rear main seal; Crankshaft: Cast Iron; Pistons: Cast Aluminum; Camshaft: Performer #2102; Rocker Arms: 1.5:1 Roller; Manifold: C-26 #5425 or RPM Air-Gap Dual-Quad #75254; Cylinder Heads: Performer RPM #60899; Carburetor: Performer Series or Thunder Series AVS; Water Pump: Victor series aluminum; Distributor: Included; Valve Covers: Cast aluminum - style varies by application; Finish: Satin, Polished or EnduraShine; Warranty: 2-year / Unlimited mileage * This Performer Dual-Quad has the same specs as the Performer 320 with the addition of an Edelbrock dual four barrel intake & 500 cfm carbs. Customers have their choice of the classic C-26 intake for lower height and greater hood clearance or the latest generation Performer RPM Air-Gap Dual-Quad intake manifold. Additional options include satin aluminum or polished finish, EnduraShine (on RPM Air-Gap Dual-Quad) and water pump style. Crate Engine. Edelbrock 9.0:1 Performer with Dual Quads/Air Cleaner. With Short Water Pump. Endurashine Finish