CMC Power Lift manual Jackplate 5 1/2" setback

Rated for a 300HP V6

I put it on my boat a few years back and couldn't get it to perform better than my 4" setback that was on that boat (might not have messed with it enough) pulled it off and has been sitting in the garage on a shelf since. Basically brand new besides the 8 hrs it was on the boat