1993 ford ranger 2.3l swap to 351 what problems may i have?

[That guy]

i have a 1993 ford ranger 4x4 2.3l and it has absolutely no power so i want a biger engin but i have a 351 engine so i figured i could use it i know ill need to get another transmission and there will be clearence issues putting the bigger engine in but will i encounter any problems i may not know about i know a bit about fords and engines i just rebuilt the 351. im planning on putting a body lift on the ranger to help with the space under the hood issue and i know ill have to do something about the added weight just not sure of anyother issues that i may have does anyone know any problems that i may have