302 ford motor with 10 degrees of timing, ran great.. drove it to the customer's house and two hours later he gets in it to drive and it starts fine and moves it about 100 ft. to the end of his drive way and then gives it a little gas to move and it dies... won't start.. we go back over and try to start it for him and it sounds like it's out of time... put the timing light on it and you have to give it 25 deg. of time to get it to start and it runs fine like that... he took it to a shop and they put it on a scope to check the if it was elect. and they told him the timing chain has jumped a tooth and that's why you have to have to put 25 deg. in it to make it run... Question has anyone else had the timing chain on a ford motor jump a tooth and put it out time.. ??? Or could it be something else that we are over looking?? hate to tear the motor down to replace the timing chain if not needed...