also elevation and type of dyno. my numbers are low though, not sure why. I recently had some work done to the turbo.. the rear oil seal took a **** so while it was out I had the housing bored out for a p-trim wheel

Spools a couple hundred RPM sooner and feels like its gained another 10-20 hp, really happy with it. practically a BNR stage 4 but with unclipped exhaust

 

15 degrees advance sounds massive- have you retarded the timing and found the fuel air mix got better?

 

Sorry to crush in, but would 720/720 (just purchased them) be enough to support a BNR Stage 3, Walbro, RB REV TII; and how much boost would be still considered safe?

 

I run 720's and got 272rwhp@ 10 psi on the stage 3, with FD fuel pump. I would put in some bigger injectors to run more boost.