3x2 option

I strongly suspect that the SuperMarauder induction was dealer installed. There are references in some car mags that though the option was listed by Mercury it was yet unavailable. Many of the Ford tri-powers were shipped with the vehicle and installled by the dealer. I believe Mercury sold quite a few of these systems over the parts counter as well, since many seemed to end up installed on boats.

I have a pair of valve covers. I will try to get a clear pic and post it