[SPF1061]

and my $.02...
I have a 392 Crate in my SPF. 29,000 VERY spirited miles in a bit over three years, including about 25 drag strip passes and 100+ track laps.
As others have suggested, changing to better flowing heads (AFR, Trick Flow...) and a tweaked
carb will really bring this engine to life (about an extra 75 real rear wheel horspower). I hate to say anything for fear of jinxing myself, but up to this point, my crate has been 100% reliable and provided me with lots of great big smiling miles. With the forged pistons and new warranty, I think the Ford crate stroker represents quite a performance bargain.
Having said that, my next engine will proboably be a Keith Kraft stroker, just so I can have the bragging rights and even more unusable horsepower (BFG). Whether it will be worth the considerable extra expense remains to be seen.