what size lipo for racing in stock slash and mod 2wd truck last time i raced we still used red scr batteries 20 years ago

Any size 3200+mah will work fine.

MaxAmps 4200 35c

http://www.maxamps.com/Lipo-4200SS-74-Pack.htm

Fantom Has great batteries too. Check them out.

http://www.fantomracing.com/

Heres what I have:

http://www.promatchracing.com/products.php?cat=21

I have two Thunderpower 5000mah 40c batts and one SMC 5000 28c batt. They are awesome batts. I have had the SMC since oct and it still has the same performance as when it was new. The TPs are about three months old and they are still great packs. Thats with racing them every weekend and the numbers are still the same or better than new.

i have a pro match. and i love it. it runs my rustler and produces well more than enough power.