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1Cylinder head porting — refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve the quality and quantity of the air flow. Cylinder heads, as manufactured, are usually suboptimal due to design and manufacturing… …
2MythBusters (2009 season) — Country of origin Australia United States No. of episodes 23 (includes 3 specials) Broadcast Original channel …
3Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
4Competition Cams — Competition Cams, Inc. Type Private Company Industry Automotive aftermarket Founded Memphis, Tennessee, USA (1976) Founder(s) …
