All the windows must go, witch you already did, so all I do is run it a little on the rich side and keep it moving at a reasonable speed and so far in 2 years Ive never had much of a problem... cept stalling once and a while, no big deal.
If you find the ABS a little too slick, try using vinyl tape (electrical tape) on your regular rubber tires. 2 to 3 wraps, cut it clean and attach at the bump that you started the first wrap, and use a dab of tire glue on the end to keep it stuck. Then make sure the tires go on so that the tape is spinning is such a way that it wont unravel and tear off right away. You cant wrap it too tight or it will cause the middle of the tire to bow inwards...
Believe it or not it will last quite a while if you do it correctly, and it feels way better then ABS with nitro powered drifters.
Cheers!