I'll agree with you on the torque, but the 350hp is a bit optimistic maybe closer to 300hp, but thats a fully built inline 6 with an aussie crossflow head adapted and a full race port and polish with high compression pistons and a high lift race cam and triple weber race carb setup. As for being fully streetable i supposed so if you like struggling to drive it. Sorry, not trying to cut you down but I'm a huge ford six fan and work with them often. With a setup like that your not going to have an engine that lasts long. You gotta remember that the ford 200 is only like 3.3L and a modern bmw s54 3.2L engine in the 2001-2007 bmw M3 only made 333hp and that was a quite a feat. Granted the csl version was able to pump out like 380hp but you looking at modern fuel injection, variable valve timing, dual overhead cams, and 4 valves per cylinder. No where near the same engines nor capabilities. The best i have ever Seen on an old ford small inline six was a 250 that made like 295 hp at the flywheel and 320 lb-ft in a ford maverick. Trust me a maverick of the same hp V8 would get ate alive by this maverick because the torque came in low and strong. People make claims that the old ford six could make a good bit of hp, but they were using butt dynos and couldn't make the difference between torque and hp. I'm not saying 350hp isn't possible, just not really streetable for your avg joe.