HYDRAULIC - Big Mutha' Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

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HYDRAULIC - Big Mutha' Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

  • 295/313 Advertised Duration, 243/257 Duration @ .050 inch, .500 inch/.486 inch Lift, 107 Lobe Separation
  • Valve spring upgrade required
  • Package Weight: 8.88 pounds
  • Country of Origin: United States

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