Rep Power: 0

Many of my intake valves are stuck open. Yup, they completely ignore what the rocker arm is doing and just stay down. I'm guessing they got "glued" in place from deposits created by using old gas (car had been in storage then I ran it a few times on the old gas). Engine has turned over plenty since the valves got stuck.

So... are they definitely bent now or is there any chance they're just stuck? If just stuck, is there any way to free them up without removing the head?

 
Rep Power: 217

If they're just stuck from deposits, you can try some stuff called AutoRX. I know Gearbox said it worked wonders for an old 5th gen someone he knew had.

 
Rep Power: 0

I can't use fuel additives: there is zero compression.
I'm still wondering if there's some way to determine whether they're bent or not.