I measured my '88 transom .... and I remember it measuring about 11*. If you put a 14* bracket on that, the bracket (and thus motor) would be tilted "out of the water" by 3* more than normal.
No it will not cause you any real problems,
But you will lose a certain * of tilt when you want to trim the motor.
How that affects will depend how much your off to begin with??
Don't think 1* one way or the other will be a problem.