A couple of days ago i finally put a new but used(if that makes any sense what-so-ever) ej205 in my 02 wrx. Supposedly the engine has around 40,000 on it. We never touched the timing belt at all, intake manifold came with the engine. We put brand new spark plugs in and gapped them around .28-.30. I can hear the fuel pump feeding fuel and I know that the spark plugs are working. It cranks for a while but never starts. Any suggestions on where to start?