while the 5.0 mustang is lighter and has 420 hp to 5.0n f150 360 hp...running 93 octane fuel would using the mustang timing tables be a good start for aggressive timing on the f150 the engine is basically the same on the truck , I think intake cams are slightly smaller and the exhaust is a lot more restrictive on the f150. my truck is a regular cab short wheel base with 4.10 gears and offroad y-pipe