Ok my boy hit a hard bump in his LS turbo the motor is completely built and it shut off and tries very weakly to turn over.. Compression is 35 in every cylinder what could be the culprit??

i'm thinking it jumped timing any other ideas?

 

timing, ringlands .... it could be a few things, have you done a leak down? check it out

 

Sounds like to me that your timing is off and your intake valves are open for most of your compression stroke