Originally Posted by
Canada1
All valve jobs should already be 3 angle
That is how one sets up the valve seat width and placement. You can't do that without 3 angles.
That is another term used to get extra $$$ from your wallet.
True, but the top and bottom angles are usually changed (i should have been more specific).
My seats were cut using info from the pumaracing site and the linked site.
http://www.pugheaven.co.uk/CYLINDER%...IFICATIONS.htm
My inlet valves were back cut, i didn't want to reduce the thickness of the exhaust valves. Supposedly these both improve flow at low to mid valve lift.
My guides were ground flush with the ports again this is supposed to make a good improvement to flow. These are fairly standard things to have done, all showing documented improvements to flow.
Rob,