1 star: 35000 points
2 stars: 45000 points
3 stars: 60000 points
This is a tough one. Start out pushing through the 3 hit blocks to open up space, but match fast and match often. 35,000 is a big score for 90 seconds, so you will have to make a significant amount of striped candies and multi candy matches to pass this level. If you can pull off a color bomb and striped mix, that will significantly help your score.
Patricia Frederick’s Tips for Candy Crush Level 151
The best way to score points here is breaking through those heavy blocks. Just keep hitting them so you have room to create as many special candies as you can.