Edelbrock 2221 - Rollin Thunder Camshaft, Ford Small Block 289-302

Edelbrock Rollin' Thunder camshafts are designed to improve horsepower and torque, produce a great sounding performance idle and provide excellent vacuum at idle to support power accessories. Rollin' Thunder camshafts feature more aggressive lift profiles than possible with conventional flat-tappet hydraulic cams, without excessive valve overlap that can compromise low rpm drivability; reduced friction provided by roller tappets makes this combination of accelerated valve lift and reduced duration possible. Edelbrock Rollin' Thunder camshafts are performance-matched to Edelbrock Total Power Package components for proven performance.

• Designed for 1500 to 6500 performance
• Maximum power in high-RPM with good low-end torque
• Matched to Edelbrock Performer RPM intakes
• 10 to 12 in. of manifold vacuum at idle
• More lift and duration than most street camshafts
• Dyno matched/street proven performance
• Take the guesswork out of camshaft selection!
• Use only stock ratio rocker arms
• Engine swaps