I dont think the 3.0 will support 275 hp with stock internals... 250 is probably the most us 3.0 owners will see without forged internals/ blower/ aluminum block and heads. Mod up that 3.0, run it till it dies which will be a while, and then either put a 302 in it or get a Tom Morana 3.8 V6 that is complete stroked out to a 4.4... that bad boy is a complete engine and its on his site. Ready for 20 lbs of boost.
2003 Ford Ranger Edge 3.0L Vulcan Auto Tranny
MAC Performance Ram Air Intake
Flowmaster Super 44 w/ tailpipe before the wheel
Interior and Exterior LED w/ music interface
Ford Racing front and rear Sway Bars
Limited Slip with 4.10 gears