With the T-bird and 16-17 psi i made 213whp So the numbers you got are just about right. though your afr's look either way off or something is wrong. i maxed out my stock fuel system at 17psi boost, i was at like high 12's.
as for a new turbo my suggestion is get a big 16g evo turbo spools quick and has a great power band. only thing is you need to be squirted to really get the best use of that turbo, which probably pretty much goes with any bigger turbo then t-bird. :shrug:
60 Trim SOLD213whp??? What other mods or things did you do to get that? All my mods are in my sig....
I've seen the 60 trim from a tbird in person before. Hurry up and buy it from keeloh.
edit: i also just bought a new air filter like 30 mins ago. Sure beats the 2 1/2 year old one that is dirty as [fizzle] and makes the turbo spool better