Rebuilt an f54 block, didn't touch the head w/200k or so on it, t04b-25, >10psi, front mount ic, stock turbo efi tweaked with the aid of a uego controller to handle the deletion of the emissions and idle speed hardware, 16gal fuel cell, spec aluminum flywheel, stock turbo clutch (MISTAKE!), vintage air, new brake hardware all around, skimped on the suspension (mistake #2), no head unit, just an amp with a headphone to RCA adapter, and a nice kill switch.
It has served me quite well, but honestly, having recently purchased my mostly stock all-trac the z has become my lady on the side, and driving it less has made its foibles so much more evident.
The clutch does not tolerate the new setup at all. As soon as the wastegate dumps I lose all acceleration. The I caught the efi leaning out up top under wot, the suspension is poorly suited to handle Philly streets, my windshield leaks on me, and I have less than desirable driveability in the low rpm, light throttle range. But that car is still the s@#t of s$@ttown around here.