340

$900? and 2 cylinders now be maybe ok? You need th check if the rings are sealing. Put the heads back on,with rockers, don't need intake on. Check compression again, write it down for each cylinder. If under 150#, squirt some oil in each spark plug hole, see if it changes. It probably won't, as you did the valve job first.
What where the color of the valves? And the combustion chamber?