904Jamo

1994 K1500 with a 5.3 swap. Recently started having some AFR/misfire issues. Went through the spark plugs, coil packs, checked for exhaust/vacuum leaks. At a loss here, any insight or ideas of whats going on would be appreciated. At idle not in gear, it idles high/rough. When shifted into gear the truck bogs down sometimes shutting off and then jumps back to normal idle. When driving around, anytime 30% or more throttle is applied AFR shoots up to around 25-30. Video is attached for reference. Thank you.