im sorry to say this, but there is no way of telling if your getting even flow unless you pull each plug after a plug chop or you melt a piston
See, even if your running a wideband, etc it will only tell you the group, not each indivudal cyl. This is why intake companies spend thousands on flowbenchs, etc
I would definatly check plugs immeditally after your first WOT run!
I am waiting though to see what it makes for boost/power at rpms.
Another thing, i have heard that these blowers can blow really hot, so i wouldent get crazy on the timing! However you have a setup that can be run through an intercooler if you need