Hello yall.. got myself a 2001 xterra 2.4L L4.. had a bad headgasket on it and the mechanic wanted 1k to get it fixed.. Being stupid and not knowing much I attempted to fix it myself.. fast forward got everything taken apart and back together and it won't start... has compression, spark, and fuel going though its systems but it just won't start.. I was guided that it might be the timing.. look at these photos attached and please tell me if I some how messed things up... thanks!