Now I see where you're coming from with your high-12 call. That'll be awesome! What mph are you getting with no stally & 3.27s?
I got my PB -14.78- with 4.11s (still have them) and a 3000 stally (don't have that anymore), my mph was quite low though, 91.48mph. I went back to a stock converter when I blew up my old BTR and although my ET slowed to 14.91, my speed went up to 95mph. Of course, I've got std heads, std cam, std ignition, std fuelling, hence why you're 1.5 seconds ahead of me.
A mate of mine was getting similar times to me with a very similar engine setup (AU MAF + T/B + Explorers, Paceys + exhaust, auto) but with 3.45 gears & no stally. With our engine/driveline setups & times (60ft, half track, etc), it seems that my 4.11s would blow him away on launch but he'd reel me in down the 2nd half of the track. Not that we ever got to race side by side
