4300, very nice so far
I had my first race day with the 4300 today. I think this system is great for stock racing. I just geared down until my straightaway speed was approximately equivalent to everyone else. I guess thats the whole point to stock anyway. My results/observations were:
1. a very fun day of racing without cutting a motor!
2. excellent / smooth bottom end.
3. speed control never temped over 134 degF. (granted it takes me about a minute to get off the track, get back to the pit, get the body off, and temp it with my exergen)
4. noticed a difference in topend with a "good" pack vs. a "not so good" pack
5. allowed me to drive to the best of my abilities (nothing about the system was a drawback all day)
So if you enjoy the competition of stock and can appreciate good driving over having the fastest car, but don't enjoy cutting motors so much, the 4300 is very nice.