Thoughts on using a jack plate

[Carl]

I am in the market for a new to me motor and I have found a Honda 150 4-stroke with low hours for a decent price, but it has a 25" lower unit. I am wondering if anyone has used a jack plate to mount the motor higher on the transom and what the results have been. Is this a good idea? The motor weighs 485 # and the jack plate would add another 35 # for a total around 520 # hanging off the transom. Is this too much? I had a mariner 150 2 stroke previously. Is this too much torque on the transom? Any thoughts and ideas are appreciated.

Carl