Just got done putting new ignition & stering lock in 92 sel 500 now the problem i'm having is that the power comes on key turns to all places but it will not not crank & the key will not come out of the ignition + the stering is not locked

If it's an automatic check fuse #15 wether it's a stick or automatic you should have power at the red & black wire coming out of your ignition switch when you turn key to start postion and power at the red wire going into switch at all times. if no power coming oit on the red/black wire you need an ignition switch. if there is power coming out of switch try putting car in nuetral (for auto trans). if still nothing you'll need to check for power at small wire going to starter when key is turned to start. if has power then need starter if no power you'll need to check starter interlock relay.

the problem is most likly your stering wheele lock turn wheel left & right till wheel locks in place then your ingition key souyld turn

You may have your foot on the brake pedal, keys wont come out if foot on brake pedal also.

GM cars have a passlock system that uses a transponder and reader from the key to start the engine. Just changing the key and cylinder was not going to start the car. The cars BCM ( body control module computer) has to be programmed to match the new key and cylinder. You will have to take it to a dealer or an automobile locksmith that specializes in ignitions. Taking out the box was the worst thing you could have done. Now you have two things that need fixing. All you had to do was take the cars vin number , your registration and maybe tow it to the dealer and they would have cut you a key and programmed it for you.

Hi
Sounds like the ignition barrel has failed.
If you replace any part you must ensure that the key and the transducer ring are matched. If not, the immobiliser will come on and you will never start the car.
Get a diagnostic test to verify the immobiliser is turning off.
Roger

yes, that is what a large srew driver is for, hehe.
However you will need to pull the stering wheel
and remove the internal blinker assembly and remove a bolt holding it in place, if you need to move the tumbler use a srew driver and force it around. This
should be done by a good mechanic, even we have a fun time...If it is design like I think

My 1992 Chevy blazer s-10 starts and then the door locks automatically starts locking and unlocking...It wont stay running either...

Make sure to push the brake firmly with you foot. I do this all the time.

the next time that happens wiggle the stering wheel. you might have an ignition lock on the car that locks the key in one spot.

sometime when the stering wheel is turn it put pressure on the wheel try turning the wheel turn the kee at the same time