Power everywhere, but no spark

i just replacement my ignition switch i some how fried out.. i had it running a few days ago ran really rough... thought i blew a motor mount or something was shaking pretty good... and now it just rolls and rolls.. spark plugs look good rotor looks good i am going to go see if that is spinning.. but will a car roll over if that cam chain is off? im eager to learn if i have willing people to explain..