Should I continue working on my startup or quit and join my friend's startup?

I'm a recent college grad building a consumer internet product in India. I have not raised any money yet and I have yet to convince someone to join as a co-founder. A major version product is going to be launched in the next month. I have very low personal savings but can last a few months. I have to rely on getting angel investments once I get good enough traction. I've been working on this product for around 6 months. The pilot is already out and I've been iterating it to increase retention rate and find Product Market Fit.

However, recently my friend connected me to someone from the USA who has an idea for a new startup. This guy is NOT well connected in the Valley. He doesn't seem to have a good idea of what it takes to build a highly scalable Silicon Valley type startup. However, the positive is that A) he has good amount of money and B) he is based in the United States. He is willing to put in the initial investment and is asking me to join him in building his product.

If I go ahead with this guy:

1) I won't have to problem with running out of money (at least for the first year and a half)

2) I will have a co-founder (him)

3) I will get a base in the US which will make it easier for me to build a connection to the US startup ecosystem.

4) I will probably get less decision making power and equity (he has not told me about the details of our partnership)

Would it be a good decision to continue working on my startup but accept this guy's offer as a part-time thing? And then, after a months, I will look at which one is getting more market validation and go all-in full-time on it?

Some examples make me think that this is possible:

Mark Zuckerberg was working on Facebook and Wirehog at the same time initially until it was clear that Facebook was going to be huge. Also, it was initially Garrett Camp who was mainly working on Uber and Travis took it as a side-project. Once Travis saw that Uber was taking off, he went all-in on it.