*Note: Mechanical Roller good on 3/8 to 1/2 mile asphalt track with tight corners.
**Note Requires bronze distributor gear.
| Operating Range: | 5800-7800 RPM |
| Duration Advertised: | 292-5° Intake / 296-5° Exhaust |
| Duration @ .050'': | 256° Intake / 260° Exhaust |
| Valve Lift w/1.5 Rockers: | .672'' Intake / .672'' Exhaust |
| Lobe Separation Angle: | 106° |
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