Vacuum looks low. Sounds funny to me.
here is where I would start, pull #1 plug, hell pull them all, it will make turning the engine over by hand easier, bump it around till you feel compression in the #1 cylinder, stick a screw driver in the plug hole and turn the engine by hand till the piston is a tdc, feeling the piston moving. you may have to turn it back and forth a little to get it there, look at the timing marks, it should be at 0, tdc, this will tell you if your balancer is off.