f150luke

Has anyone ever rebuilt a 5.4 or even a 4.6 with no add-ons like a supercharger or turbo charger and got high horsepower...Im looking to do a rebuild project with my 98 F150 5.4 and was going to build it to its full potential with all engine, no add-ons, but i guy told me that the Modular V8 cannot with stand high horsepower unless it has a super or turbo charger. Can anyone help out with this one?