I swear I'm gonna flip on the next person who asks if he has a scan gauge...
READ PEOPLE.
Anyways, op, my guess is, you have boost, the problem would be if it is a top swapped car, is that it's knocking so much that it will feel like a turd.
So, leave the belt off, don't rag on it for the sake of that engine, make sure nothing but 93 is going in it, and get a scan gauge as soon as you can.
Also, ltft= long term fuel trims, by giving us the idle, cruise and wot data from this parameter we'll know if say you have a vacuum leak for example.
A top swapped car is a pretty touchy thing and I would never have a zzp can tune on it. A custom tune is the only thing that should be done to a top swap
Good luck