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mast heads

  1. Weapon X Motorsports
    After seeing the success with the large bore gains, one of our 9 second Vs decided to pull the trigger on the medium bore heads and see what kind of magic will be worked. Stay tuned!
  2. Weapon X Motorsports
    My head porter took the larger bore heads and reworked them for a client doing the 3.4L blower. Intake // Exhaust .100 76.2 // 53.8 .200 154.4 // 111.3 .300 234.7 // 162.2 .400 308.2 // 208.0 .500 359.3 // 236.6 .550 377.7 // 244.4 .600 388.0 // 250.9 .650 391.1 //...
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