A few weeks ago I posted a thread about getting a 7 who previous owner had taken all apart. I put it all back together. Wouldn't start. Engine rotates but wouldn't fire. So I did all the troubleshooting. I got it running by doing unflooding technique. But now that its running its making a loud knocking like a piston motor would. When I increase throttle it gets louder. Can anyone identify this problem? Motor blown?

 

Bumo for help

 

Could be, compression test it