>>102503206
Since Bourbon specializes in front running then you should do speed>stamina>power, don't trust Tazuna advice on guts, she is a liar
In the first year period you should focus on training with the support card's character to raise friendship. When their bars reach orange that means they can occasionally "rainbow train" with you
Before debut race, you should also try to get speed to be >200, if she loses that race, you should start over that career