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- Joined
- Oct 16, 2014
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- 29,607
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- Salisbury, Vermont
Yeah, it's time consuming to be sure....Be worth doing to get better airflow..free HP.I didn't go crazy with the porting on mine but after having them tested they were on par with the Stealths. After larger valves were added I opened the seats up, blended the bowls really well, gasket matched leaving the exhaust slightly under and cleaned up the casting.... still plenty of hours.