For those who want modern efficiency and power, Edelbrock offers the Performer 380 Pro-Flo 4 XT. Like its carbureted sibling, this 350 cubic-inch package offers 9.0:1 compression ratio, but with the modern Pro-Flo 4 XT EFI delivers a stout 380 horsepower and 401 ft-lbs of torque with increased mileage potential! Displacement: 350 c.i.d. Rocker Arms: 1.5:1 Roller #77770 Horsepower: 380 hp EFI Systems: Pro-Flo 4 XT #35823 Torque: 401 ft-lbs Cylinder Heads: E-Tec 170 #60975 Compression: 9.0:1 Distributor: Included Block: 4-bolt main with 2-piece rear main seal Valve Covers: Cast Aluminum (style varies by application) Crankshaft: Cast Iron Finish: Black Powder Coated Pistons: Cast Aluminum Warranty: 2-Year / Unlimited Mileage Camshaft: Rollin? Thunder Hydraulic Roller #2208