well progress at least... heres where im at...
i repaired the suspect ar2 with new resistors and a new 3055 transistor.
After verifying that i am nowe running a regulated 5 volts, i ****TEMPORARILY**** removed the shorted diode from the video board..
After adjusting thr 5 volts, my game now boots up and plays!!!!
Now i have some issues that im not sure im brave enough to tackle(thinking i mabye should be happy this bieotch works)
I have no chick talking.. just static instead

in selftest that translates to sounds # 19, 20, and 0, iirc
all other sounds are there. Graphics look good with exception of intermittently your opponents cars turn into thin likes for a split second..
SOund like a rom reseat issue?? also this board has some really "creative" dip ic with wires soldered on and its sitting on top of one of the roms... mabye a unauthorized pp1 to pp2 conversion??/ i dont know...
whattya think fellers? if anybody thinks which rom has these sounds im missing please lmk im too scared to pull and reseat them all, id like to just try the one in question because i know damn well if i pull and reseat them all the board will never work again..
my edge connectors suprisingly look good and fit tight.. edges of the boards have been perviously repaired with copper foil and soltered at the inside edges to make cgood contact.. somebody did that right at least lol..
i will still jumper my grounds and 5 volts eventually because i know if i dont ill pay for it later...
im happy this thing is half working at least, makes me feel a little better