Hey Dick,

The OMC 2-bbls are installed on 4.000" centers top to bottom. Not sure about the Merc's, but have a request out to a friend with a 120 motor.

What is your cyl-to-cyl centerline distance? Have you given any thought about the 12-pack?

Tim

PS Will gladly send a carb or two for fitting purposes (not sure if I have six).