Boost and timing

[chargd72]

Those with blowers or turbos.  I'm running a magnum 360/408 at 9.1:1 compression with a Novi 2000.  I'm guessing I will be around 12-15 psi when I get the car back on the road (first pull I hit 10 psi my stock 904 blew up as expected, but that's a whole different story).  Right now I have timing locked out at 34* and I'm pulling 1.4* per pound until I get my air/fuel readings and adjusted properly.  What is your target total timing for those running boost?