How to change engine timing...

[AsH_]

i would like to know how to change my timing accuratly...

i gotta B16A and the mech said my engines timing was "Retarded"

and my engine is running lean... can this be easily rectified???

aside from that, my ignition leads are "Fu*k*d" was told probably misfiring... running off 3 cylinders...

wata pain...

my poor car...