Got to where I wanted finally. We stopped here because I am really maxing out this non-HP 255 walbro and should maybe get something a little bigger The run was done on 31.5 psi. I’m quite happy with what it made. Hopefully it holds together down the track. Turned it back down to 27-28 psi so I don’t accidentally spike or creep outside because its’ getting cold now (til I get the fuel figured out and safe safe), so it’s back around 545-555 whp. It’s nice with turbos like this how much a psi of boost makes such a difference in power. This was done on my 2.4L daily driven beater
http://www.dsmtalk.com/forums/showthread.php?threadid=125910