Aim should be 250/360 to get such a rank

The cutoff varies year to year, It  depends on the difficulty level of the question paper & no.  of candidate. You try to score more than 170 to get a rank under 7000 in JEE main. For further you can go through with given below link.

JEE Main

You need to score more than 200 marks in JEE Main to get a rank under 7000.

You can also check the marks vs rank data from the given below link

JEE Main Result- Marks vs Rank

Good Luck!!