Going strictly from memory, Don's second picture looks correct for a '68.  One of our local guys had a white '68 Malibu L-79 4 speed car.  I was surprised when I finally got a peek under the hood.  I was expecting the Alum. intake, a Holley and the Chrome accessories like I had seen on the '65 Chevelles and the '66 & 7 Novas.  Still, a pretty stout small block.
Who's our L-79 expert?  Jeff Latondress, where are you? 
