i did tuning with the wot switch when i had a WB in the car. it was tuned at 10psi. I just found my old post when i tuned it:
aux = c
base = 2
idle = 1
mid = 3
wot = E (11.6 a/f)
My setup is a maft in blowthrough.
hope that helps. the WB was taken out of my car since it belonged to my friend.
BTW i do not have any other tuning equipment in my car other than the maft. Mods that might be helpful are a driftmotion spearco IC, 2.5" hard pipes, stock ct-26, 3" full exhaust including elbow and and DP. Timing is at 10 degrees. Keep in mind my car is a NA-T with GTE electronics
also perhaps someone can help me with this about the profec b. Is your balance setting more on the mild side or the sharp side. The manual says turn the knob toward the sharp side if i experience over boosting, but my friend sujjested moving toward the mild side which i have no yet tried. thanks