intake backfire? 5vz

lately my truck has been shitting the bed, my brake booster went out this morning, ive noticed white smoke from the exhaust today (possibly blown gasket or just condensation)
i noticed this “smoke” from the tail pipe and there was water deep in the tail pipe and i didnt smell anything unusual in the exhaust (no burning coolant smell)
so i decide to clear it out and give it revs to 3k and i barley blip the throttle twice on the throttle body and there was this sudden BOP from the motor. i felt the shock through my chest as i stood next to the intake. i even got it on video so i’ll upload a link to it
any ideas an what could cause this? its never happened before so im guessing it was the timing?

https://youtu.be/QE421-TFVqs link

 

My 4runner did that when my MAF went out

 

Mine did the same. Cleaned the maf and it went away. I also had 2 bad coil packs. Might be one of those