437" of 23º Pure Grunt

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SpeierRacingHeads
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437" of 23º Pure Grunt

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SRH v3.00PF. 265cc TRUE 23º with Burr finished 2970 with no welding.

Built by Chris Cobb at DynoTune Engineering. Dyno'd on his dyno.

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Speier Racing Heads
Chad Speier
785-623-0963
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