1987 mustang gt ,5 speed..stock motor

just picked it up,changed ground to chassis(was weak).also changed starter and solenoid,battery,and terminal connectors.after each change it started right up.after each first drive and shut down,it would not start(with the sound of a dead battery.i do have full power also even when it wont start.runs fine till you shut her down after each repair.then same thing.when its warm,it wont start at all.any suggestions.possibly another bad ground,or cables themselves bad????when it runs,it is smooth and idle is perfect.

 

bad starter...?[&:]

 

solenoid id say? dont they not start when its warm? or is it when cold.. dunno..

 

thanks fellas,tracked it down to bout every ground under the hood being bad.new battery helped too.thanks again.