On Tue, 02 Jun 2009 10:56:26 -0500, Vic Smith
wrote:

Main reason for DOHC is car geeks buy them.
That's pretty much it.
You can get into all kinds of arguments about valve train slack,
aspiration, cylinder head combustion gas flow, better 60-70 mph
passing speeds, etc.
But the reason they sell is car geeks buy them.

Car geek and Lincoln do not go on the same page.

Casady