Another alternative, like what I am doing, would be to build your own BBlock stang. I always wanted 428Cj or Boss "9". My 69 Mach 1 was originally a decently optioned M code. When it is done it will sport a 521CJ, with B514 heads and a tremec TKO 600. I have about $ 4200 in the motor. With 9.8:1 comp, it puts out 575HP! That's on pump gas. You also dont have to wring it to the moon like and FE or small block to make power which also means less wear. granted it is a street car and looks completely original inside and out with the addition of a set of Magnum 500's. It is Meadowlark Yellow with the black stripes/gold centers. No Ram Air. Until you open the hood and notice the "429" Cobra jet on the hood it looks as it did in 69. tach and all gauges, folding seat, console, light teak (early) woodgrain. It has staggered shocks and the Boss 302 reinforcement kit, as well as total control subframe connectors and traction masters.
I love it just the same. had it since 1980. A tasteful restomod also brings good money if that is what you are looking for one day. I dont think i will have a problem selling it when I am older if I need someone to change my diaper one day!
I love FE's to death and spent a small fortune on them over the years in other cars. The parts for them are still plentiful but get more and more expensive.