For getting a very good college a decent one, you need to score around 105 and above marks out of 120 in the GUJCET. The syllabus for both of these exams boards and gujcet is almost similar enough just the approach is different. So study very smartly. And if you prepare well for gujcet, scoring a decent percentage in the range of 85-90+ will be quite easy for you.

Best wishes. Thank you.