20' SeaCraft heavy motor

[Offshore Asset]

So I have read just about everything on these boats. I am in the middle of restoring a 1969 20'. I am planning on a Hermco Bracket. And I will be putting my fuel tank as far forward as I realistically can. I am also making it a flush deck all the way forward and it'll be raised 3 inches from factory.

I am not sold on any one motor yet. But am leaning towards the 200 Suzuki. It is heavy but I have seen them with heavy motors before. The 250 Pro Xs is slightly heavier, how would it run with a 250? I've seen 250s on some 20's.

Could the boat perform well with the weight? I am moving the tank, and console forward. Or am I just crazy?