Most of the cam descriptions, power bands are written for a 350. Remember, a smaller cam with act and feel larger in an engine with less cubic inches. Had to replace the intake manifold gasket and clean the carb on my project car. of torque when used with 7111 intake and stock iron cylinder heads on a 350 engine. 350 Chevy Chevrolet Vortec Intake manifold replacement. Slow idle speeds may result in severe cam and lifter wear. The edelbrock 2102/sum 1102 would probably make better low end since it has less duration than the comp 300+ I would err choosing a cam on the smaller side since this is a 327, and not a 350. This Edelbrock cam kit produced 397 HP & 400 ft-lbs. Do not allow the engine to run under 2000 rpm for the first 1/2 hour. Coat cam lobes and bottoms of each lifter with MoS2 lube (supplied) to prevent cam lobe and lifter wear from occurring during initial start-up. Oil/additive must contain Zinc designed for use with flat tappet camshafts. They offer improved throttle response and torque. They feature smooth idling cams for daily drivers, trucks, vans, RVs, and 4x4s. In order for this Performer-Plus cam and lifter kit to be covered under ANY WARRANTY you must use either the correct Edelbrock Sure Seat valve springs or the stock original equipment valve springs. Edelbrock Performer-Plus cam and lifter kits are designed for optimum torque from the low-end to the mid-range. Recommended Valve Springs for OEM heads: Edelbrock part #5812 May require longer than stock pushrods.For more information, visit Installation Notes WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm.