85s Raw is probably enough after alignment.Uhh that's very inaccurate.
You would need at least 90's for everything unless you get like high 90s for 1 subject which could compensate for a high 80s for another subject. For e.g. a 98 in 4u can compensate for high 80's in Physics.
Oh well I was talking about final marks.Accounting for alignment, 85s is probably enough.
problem is you should expect less external marks than what u expect as a raw mark because external markers mark differently to your teachers and are paid per paper (meaning they likely ignore carry through and stop marking a question earlier into it if it seems wrong.).