Pop your hood and either have someone watch the engine or look at it through the gap in at the bottom of the winshield. Start the car, set the parking brake and push down the brake pedal pretty hard. Put the car in first and let the clutch out till it starts to catch and bog the engine down. DO NOT LET THE CAR MOVE. The engine should have no more then 3-4 inches of movement. If it flops around like a dead fish you have a broken motor mount. If you have no power and are blowing smoke and smell gass I am 99% sure you have jumped timing.