quickest way to level up and earn credits in b-spec?

[digitalic]

Curious if anyone knows which event will give me the most amount of credits and experience in the shortest amount of time?

 

[drastick]

I just started my B spec career after getting level 19 in A spec and not being able to beat All Stars... I've just been throwing my driver into the highest level race he can compete in, working so far. I've been skipping a few series, maybe I'll go back later when I'm bored and don't need to level up or put a new driver in them. Not too sure.