Need help ?

Car ran fine with no sign of trouble until after I parked it one night . Next morning the engine turns over but does not start . I do not have a vacuum gauge .

I just pulled all eight plugs & removed the distributor cap . I put a 1 1/4" socket on the crank shaft and turned it clockwise until I saw the rotor move . Then I reversed the socket direction counter clockwise and there was immediate movement in the rotor . ZERO backlash !!!!!!!!!! Still stumped !!!!!!!!!!!!!!
With all of these failed start attempts, is there a strong odor of raw fuel/start-fluid coming out of the exhaust pipe? I've seen rodentia fill an exhaust with dog food overnight, try attaching a shop-vac to the tailpipe & see if it labors quickly, if so You may have a plugged/collapsed exhaust.