Them chasing him is the action. But I want to know what causes them to chase him in the first place. There has to be a motivation to understand why it’s so important that he evades them. It’s a bit two-dimensional at present. This will also help with understanding who our protagonist is. At present, he’s just a “young gang member”. I think we need more from both sides to really feel the story.

Is he part of the same crew? If not, I think it would be worth making it clear that it’s a rival gang (as Trix pointed out).

As soon as he goes incognito, surely that’s the end of the chase? This is why we need more motivation for the bad guys. We need to know that they’ll stop at nothing to get him because he’s done something to them.

Why do we need to know they are “machete wielding”? Tell us they’re a rival gang and we understand what’s at stake. Admittedly, “machete wielding” is visual but I can’t help but think telling me they will stop at nothing to catch this guy would give me a lot more plot to imagine. I also think, given that the plot takes place in a car (as it currently stands), and to kill by machete requires close proximity, the protagonist feels very safe to me. If they had guns, suddenly it feels more threatening.

What is the purpose of the hassidic geriatric? Plot-wise and story-wise?

He’s “forced to drive incognito”. By who? A protagonist should be proactive. He’s not pushing the plot forward currently, he’s being pulled. Why is he forced to drive incognito?

Rather than the MC being a “young gang member” maybe he’s a gang-banger wannabe. He’s delivering the drugs run as his initiation. Then maybe, the guy who’s asleep on the backseat of the car he hijacks is an ex-gangmember ex-con who’s seen the error of his ways. Now there’s an interesting situation and I immediately understand why you’d put these two together.

They discover a passion for music – this isn’t the same as saying they become musicians.

“drugs get in their way” – This makes it sound involuntary. Taking (recreational) drugs is not involuntary. It’s a conscious choice.

It would be stronger if there was a single protagonist who became addicted to drugs as this creates the most conflict within the band (I’m assuming they’re a band).

“find a way to being addicted” – I’m guessing you mean the opposite – find a way to not be addicted.

“go after drug lords” – why?! Just because they’re addicted does not automatically make them suitable for going after the drug lords. Given the rest of the plot, and the genre, this (in my opinion) feels very misplaced.