Regarding the age and reliability of those old BFG tires (T/A Radials?), I've beed driving on mine for the past 4-5 years on the street and some local hi-speed road course lapping events. Size 245-60-15 front, 275-60-15 rear... bought them ~1990 and basically they sat in my garage unused until about 2009 (I got real serious and began trailering the car full-time on autocross race rubber)... currently remounted onto 15x8 vintage minilite rims (were originally mounted on 15x7 rally rims). I know they're old and have hardened some, but actually they drive locally a-ok, fine on the highway, and ok on the road course events (avrg speed bewteen 70-80, hitting 110 max on some straights.. I drive it easy on those road courses as its just for social fun... bump the tires up to ~36 front, 34 rear psi.. could go a little more. So, I've now got about 2500 miles on my ~22 year old new tires. I plan to replace them with 255-60-15 fronts and again 275-60-15 rears BFG Radial T/As... they are an ok tire just for cruising and give semi-reasonable performance. For pylon autocross competition events, I run Hossier A6 275-45-16 DOT race radials on my 16x10 road race Centerline forged aluminum lightweight rims.. and I see some of the serious hi-speed road course "competition solo" cars running the Hossier A6 tires also.. they are very sticky when hot! I intend (dreaming again) to eventually get some 17 or 18 rims (9 min, maybe 10-11 widths) with hi-speed soft compound tires (~100-200 tread wear) and use them more safely and with higher confidence on the hi-speed road courses... and likely drive to/from those specific events on those same tires. All it takes is $$. Those 12 yrold BFGs of your's will get you to/from the event and.. just don't push it real hard.. and increase the psi about 5 pounds (maybe a little more) than what you normally drive on them.. just for the road course event.