Neighbor had that exact bike too. Horsepower king until the Vmax. I understand a tuneup was no cakewalk, valve shims?
The side profile looks a lot like the cb900c I had before the 500 turbo (with several cars between them- a porsche 914, and a firebird formula)
View attachment 82428
The magna directly replaced the cb900c. Which has recently enjoyed some cult status in the bobber/cafe modder circles, because of its 10 speed transmission. Which it really isnt, its a 5spd with a secondary gearbox with high low ratios, in high its in overdrive. It loafed on the freeway, in one trip on leave in the navy to my parents house, in 450 miles I got 3 speeding tickets. In one day. Had that bike just 5 months, it replaced a 750 custom I totalled in a left turn failure to yield collision. Bike went under the car, me over the handlebars. Got up and walked away unscathed, took the insurance payout and bought the 900. Totalled it 5 months later, same situation. The 900 remains the only brand new vehicle Ive ever purchased.