got the car back on the rollers today to push things along.. ended up at 670whp at around 39psi. not the best weather to shoot for a high number, but not as bad as it's been this summer (kinda lucked out on that, wasn't planned around the weather).
I kinda wanted to see what it would do if I put the wood to it, I did not stop at every boost break point and fine tune things, I basically got the timing on the conservative side of the curve and made sure it wasn't running mid 10's AFRS, and stepped the boost up a couple psi, rinse, repeat. if it hangs around throught the fall, I'll get better numbers later.
It was not without drama, the brake lines on the back of the car are pretty ****ty, and I think the driver's side has collapsed internally, so it pinched off after I hit the brakes and locked the caliper up. Got that sorted out, wastegate tried to fall off again so I put the MIG on it this time.
When we got the car above 600, it was all about getting the boost set around 375kpa (2.75 bar, or ~40psi), I'm not running closed loop though, so that required finessing the bias table, leaning it out to roughly 11.3 on the gauge, and then finally massaging the timing. at 620ish I added .5 degrees and it jumped to around 650, added another .5 and it jumped to 672.. would've kept going but something in the transmission started failing so it was a good time to end on a high note.
FWIW that's the highest number it's posted on any dyno, and it generally was fairly easy.
trans is a th400 with a 5800 stall converter, and the more pain I poured into it, the more it was noticeable below 6400 lol. aside from that, no real complaints, just things to fix.