I don't know why you have a thing for an FE conversion..FE stands for Freakin Extinct.
I had one in one of my cars in the past. The engine was a heavy sonofabtch. the intake alone was over 50 pounds, and the stock 428 CJ heads had so many bumps in the exhaust port it's a wonder anything even got out of the engine. And even after you get past ALL of that,.......it still requires a different transmission bell housing that forces you to use a heavy assed C6
Got a pig i mean FE in my 66 Thunderbird. I did shave a ton of weight with just intake and headers and some porting. Enough weight that i had to cut 2 coils off just to get it level again. Despite its shortcomings i do love it.