I just swap gsr motor into my stock 91integra ls. now as i get ready to crack my motor the car wont start. it cracks but somehow it wont start. if it do start it dies. I check the motor for fuel, spark, timing and its all good. But then the compression is low on three valve and one of the valve do not read anything its coming up as 0. Im stuck at finding why it wont start. can it be the piston rings are bad or what?