When the AWD glide was still in my car I was able to run 10.4 not using the transbrake with a real lazy footbraked 1.7 60ft launch. Tried the transbrake few times and it just spun as I didn't warm up the rear tyres in my 33GTR.
Powerglide puts the power down so smoothly compared to a manual. Defienatley had a high 9sec pass with a decent launch. Power plant was a Rb26 with hks 2530's with a manual normally make about 600awhp.