Which still would do them no good against disease, and armored horsemen
They don't have Iron, and Bronze technology was very limited.
It's similar to torturing a Grey Alien on how to make an Anti-Matter powered Warp Drive with 21stC tech. You don't even have the Tools that can make the Tools needed for that sort of creation.
It's just doesn't do you much good in the short term. All you can reveal is that you are totally screwed. Squanto couldn't save the Wampanoag with what he learned from the Spanish and English
You can still make explosive rockets and grenades easily. "This powder blows stuff up" is an easy concept to grasp and requires only a simple tech base, so they can make little clay pots full of the stuff, light the fuse and throw, would make a decent weapon and fuck up a Spanish formation in the Andes just fine. From there, a basic rocket is a matter of getting something into a regular-ish tube, packing in the gunpowder, and setting it off.
Making black powder is incredibly simple once you know what goes into it, it's a much more basic level of chemistry than metallurgy and such, and requires much less in the way of sophisticated machinery. For a state as organized on a large scale and with as developed of a state organization as the Tawantinsuyu (comparable to the Roman Empire, broadly speaking), developing a domestic black powder industry, recognizing the potential of the technology, and dedicating enough resources to develop further black powder technologies, is entirely possible.
So, making grenades, which are more than sufficient to even the odds in a mountainous environment, is easy. Making rockets is a step beyond that, and making a really basic crappy arquebus a step beyond that. The arquebus requires metal in a tube, a piece of wood, and a rock or lead in a sphere. That can be done with bronze and a two-handed sort of thing with a match-carrier for every aimer. Considerably less effective than what the Spanish have, but the Tawantinsuyu have home field advantage and will likely already have grenades and rockets to go along with the basic firearms.
Once you unhorse the Spanish cavalry, they're basically sitting ducks. The Spanish will learn and turn their cavalry into glorified mounted infantry. Tawantinsuyu will have a vast maneuver advantage and once they've developed those laughably simple grenades, they can mix some rocks in with the mix and have a basic fragmentation bomb to use on the more vulnerable legs of the Spanish soldiers. Get them into a packed valley where the natives have the altitude advantage, toss some "frag" grenades, move in with melee weapons while they're on the ground, and finish the job.
It would be rough, but plausible.
Further, I think that your comparison of the Wampanoag, a tribal society with limited territorial control and even more limited state development, to the far larger state of the Tawantinsuyu, with its institutionalized ethnic cleansing and formalized imperial rule, is somewhat facetious. Pre-gunpowder tech isn't
that hard to grasp across the various stages of its development, it's more a matter of state and society development, where the Tawantinsuyu were the
clear leader in the Americas pre-colonization.