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Uploaded by motormeister on Apr 7, 2009
Porsche 911 Twin Plug & Big Valve Head Conversion
Autos & Vehicles
Standard YouTube License
what are the holes on the modify head on the exhaust side ?
iLoicQc 1 year ago
@dawheele1 more complete conbustioin especially on older carburated engines that test o run rich.
felipesoto2010 2 years ago
what advantage is there to the twin plug conversion?
dawheele1 2 years ago
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what are the holes on the modify head on the exhaust side ?
iLoicQc 1 year ago
@dawheele1 more complete conbustioin especially on older carburated engines that test o run rich.
felipesoto2010 2 years ago
what advantage is there to the twin plug conversion?
dawheele1 2 years ago