Tsk tsk. So I figured out the rattle on decel in my rearend was loose driveshaft bolts, like, really loose. On top of that, a rattle in the front drivers side turned out to be a loose bolt that goes from the hub to the control arm. I suck, its a wonder im still alive.
Good news is that my 2mm cosmetic MLS and ARP head studs are in. My dad is redoing my fan wiring, and will also wire up my HEI module for spark control. It should be done this saturday and running again. Can't wait.