I just got my latest edition of MM&FF mag. They featured a 4.6 3V stroked to 298 CID that made 352 hp at the wheels. It had common bolt on's with stock cams. In future editions they are going to dyno different cams, but the stockers were easy to tune. The kit is by JDM engineering and is all forged, would work great with FI as well. The article listed no price. I thought those were nice numbers from a small cubed stroker. If ford does produce a 5.8, 400 hp should be easily obtained. Whats nice about a stroker, it doesn't only boost hp but torque as well, torque was increased to 362 at the rear wheels.