Reply to "auto cross ???"

Q #2- they do poorly unless you work on them a bit. Biggest problem is, your main competition will likely be Corvettes, with their 10 or 11" wide wheels in front. Panteras understeer and you cannot stuff wide enough wheels/tires under the unflaired front fenders to compensate so you must finess the situation. An unflaired '71-75 Pantera can run a max of 245-50x 15s on 8" Campis up front with some metal-massaging. A 7/8" swaybar in back will help some, too. The posi in the ZF can make the car understeer even more if its a tight unit. Toe-out in front will make the turn-in transition faster but the car then cannot be safely driven on the road above 50 mph IMHO. Be very careful to set up the shifting linkage so you can upshift quickly, or downshift quickly. You will likely not be able to do both without locking the shifter in one slot while the trans goes in another gear. Removal of the shift gate, and the secondary detent behind the shift stick will help. 45-48 psi in DOT auto-x tires in front & higher in back may be necessary. SCCA used to have 'Vintage sportscar classes' that were easier to deal with, than the contemporaty classes. Enough to get you started.