I have a calculus class that I am expected to spend 336 hours studying for.

Would it be overambitious to give myself 112 hours using PR steps (solving probs would be a large part of the activation)?
Or should I expect to use more than half the "expected" time for a heavier technical subject since I am new to the PR system?

I am expected to take the exam in June, but can give it a go in March (so if I fail, I'm not in any serious trouble, and if I don't, well, then I can relax a bit).

Max