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With an Edelbrock Performer RPM and a Holley 750-cfm double-pumper carb, best power from last month measured out at 370 hp and 409 lb-ft of torque, so we figured it could really benefit from a cam change. We swapped in a Comp Cams Xtreme Energy 268 cam and lifters that offered an additional 12 degrees of duration and a slight lift improvement. Power improved with the cam, but only slightly.
GM Performance Parts 350 H.O. Crate Engine - Project Humble Pie, Part II

With an Edelbrock Performer RPM and a Holley 750-cfm double-pumper carb, best power from last month measured out at 370 hp and 409 lb-ft of torque, so we figured it could really benefit from a cam change. We swapped in a Comp Cams Xtreme Energy 268 cam and lifters that offered an additional 12 degrees of duration and a slight lift improvement. Power improved with the cam, but only slightly.  View Related Article

 

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