I had a 2000 Civic LX w/27k jump time on startup a few days ago. After retiming it, I have no compression when turning the motor by hand and the exhaust valves have more valve lash than they should...

I'll be yanking the head to send off to the machine shop this week and in sourcing the parts AutoZone (I know...) says that the headbolts are torque to yield, however, the manual does not say that they are. All it says is that,

"Note:
- Always use a new head gasket.
- Cylinder head and cylinder block surgaces must be clean.
- "UP" mark on the camshaft pulley must be at the top.
- Turn the crankshaft so the No. 1 piston is at TDC {see page 6-20}.
- Clean the oil control orifice.
- Do not use the upper cover and lower cover to store removed items.
- Clean the upper cover and lower cover before installation."

It doesn't say to discard the old headbolts upon removal, nor does it state to install new ones. I'm going to assume that they are NOT torque to yield (one-time use). Is this correct?

As far as the oil control orifice, if it referring to the oil feed line in the block surface towards the rear of the cylinder head?