in comparision,
my cossie, running 8.6:1, @ 15psi on a GT30 turbo,
The base settings ( not allowing for ACT compensator)
3500 - 7000 rpm = 12.5' ignition timiing across the board.
@29psi , 3500-7000 rpm = between 4 + 5' ignition timing.
You need to run DET cans, as your ear just isnt good enough to map/ det check a engine.