I'd love to have a bad ass 400 the numbers that i've seen come out of these engines are amazing and the builds were not crazy, HP and TQ running 86pump that put BBFs to shame running 90+ oct.
I know, I really haven't done a whole lot to mine and it's a real performer, I can't imagine what some higher comp pistons and some different heads would do!
It doesn't even seem like the same engine that was in it when I bought it (the smog complete, original 400). Even with 35's it flys! I know it would beat my 05 PSD to at least 60mph.