How long ago did the stabilizer go in and do you run the pump 24/7? CYA takes a few days to dissolve. The SWCG manual should have a CYA recommendation; we normally recommend a CYA of 50ppm for manually chlorinated pools. A pound of CYA will raise your pool about 13ppm - use that as a guide when adjusting.

Another note: many if not all of the Intex SWCG units have a copper ionizer unit incorporated. I dislike copper (and other metals, "ions", and "minerals") in pool water for a couple reasons, the first is aesthetic and the second is sanitization.
1) Copper can stain pools, fingernails, and blonde / color treated hair green. May not be a problem if you have no susceptible swimmers and don't mind pool stains.
2) Chlorine and copper are effective algaecides - sounds good - maybe not. Sometimes pool owners get a bit behind on testing and chlorination (say a few days of rain) and the pool's chlorine supply can be exhausted. A pool with chlorine as the primary algecide will grow algae and turn green - a reminder that the pool needs attention. A pool with sufficient copper will not grow algae. The trouble is that both pools are unsanitary and sickness and disease can easily pass between swimmers (the first hot, sunny day after the week of rain and all the neighborhood kids are in then pool). Consistent, adequate chlorination alleviates this risk as well as any benefit of copper.
I recommend that Intex SWCG users find a way to safely disable the copper unit. How to do that, I can't say as I've never had one.