360 Won't Start!!

67's given alot of info, and he's right it's not that tuff, if u have comp. spark and fuel, and everything's right w/the motor it should start. if it doesn't, there's another problem.

how'd your plugs look after all this....are they fowled?? probably are....if there black, or fuel soaked when u pull them out replace them.....
you have a bright blue spark at the plugs?? how about at the coil.....serious spark?
is your fuel system tight? ( right psi or fuel pressure, no vacuum leaks, raw fuel falling into the venturis causing a flooding condition)

advancing or retarding the timing at this point w/everything correct should surely cause backfire through the exhaust or carb......actually the damn thing should run.....i believe there's another problem.......double chk. your spark and fuel, install new plugs,... reload.

keep at it you'll find the problem.......the more info u can give us, the more we might be able to help.....
higgs