Ok, so I primed the pump after work today. I changed the plugs, and fired it up. It runs, but I am getting a very low vacuum reading, around 8-10. There's a bit of knock sound on the passenger side. I did a compression check on that side and I get all @ 120. I was going to do the driver's side but my truck is parked next to the neighbor's living room window.

Anyway, if compression is 120ish on the driver's side, should I do a leak down test?

 

I pulled the passenger valve cover. One of the rockers was not torqued down. Goes to show that a higher percentage is human error rather than mechanical error.