Yes it has a 3.55 and a trac-lock. I think it's 3.55 at least. It was all rebuilt not too long before we acquired the car. It does have a massive tranny cooler (full width of the radiator) and an oil cooler up there somewhere too. I don't think we have any leaks anymore though. The oil pressure sensor was leaking but we fixed that before the race.
We got it ready for winter yesterday. 7 of 8 cylinders have 150 psi compression, #2, is at about 135 or so, but goes up to 150 with a little oil poured in to seal the rings. Should be okay though. Also needs a coil - we had a part throttle miss the whole race. Plugs were looking pretty lean too. Also looks like it could use a right upper ball joint. Other than that she's cherry!
The car actually feels pretty quick since it's totally gutted. The cage made a world of difference in handling, too. Stockity stock suspension with a touch of toe out in the front and it turns real nice, real neutral. It's still huge so it struggles a bit on the real slow speed stuff but if you get the line right, it'll fly through the high speed stuff.