[6796Chev]

You're right, sorry my wording was a little confusing. The motor is cranking over but not starting. Replaced the starter today and messed with the distributor and we think we have it back on an alignment mark that validates our mark of the position from when it was removed.

The voltage on the battery looks to be good, don't recall the exact number, and the drain has been cured.

When engaging the starter the motor rotates slowly and then stops. A second attempt yields a faster rotation and the sound of the engine trying to fire. We've gone through this process multiple times, on a couple occasions on the second and/or third try it does sound like it wants to run but stalls. After the second or third attempt there's a clunking sound and it sounds like a large rush of air back through the throttle body. So the hydro-lock sounds like it might be the issue behind this.