Joe,
On my supercharged sedan with the front sump pan I could easily launch hard enough to uncover the oil pick-up and the pressure would drop for a bit when launching. I also had a bad issue of oil pressure drop when really slowing down fast.
I had Donald Hardy JR of Don Hardy Race Cars(Bob Glidden's chassis builder back in the day) reshape my pick-up and add some simple baffles. It really fixed my problems. He ended up using an cut down and reshaped original pick-up and two shaped baffles. I have photos of them I can email you.
When I added the 1/2" steel main girdle that sandwiched between the oil pan and the block, I picked up a 1/2" of oil level which came out to be about an additional quart of oil capacity.
I realize the T-Bird is rear sump, so that would seem to be an advantage but the original T-Bird rear sump is pretty large, so oil control could still be a major problem. I think with the right baffles you might not need a heavily reshaped pan.
One thing that has really helped me watch oil pressure was a tip from Jerry Christianson about using an Autometer oil pressure sender(goes off at 17psi) hooked to my original oil pressure idiot light with a brighter bulb in the dash. I can't always watch the pressure gauge during a launch, but if that dash light flickers, I notice that.
I might give you a call tomorrow. We just got back from our family trip and I have a few ideas I'd like to run by you on your build.
Pat
Pat Fleischman