Im just a dreamer : 440 vs 360 magnum

Dual plane, Holley 750, Whiplash cam and Headers would make for a decent 440 for very little money.
It would walk all over a 380 horse 360.
The 380hp 360 as around 410hp and 440 torque...i dont know hot much a motorhome 440with these mods will have , i just wish it could do better...