According to the American Heart Association, they recently changed their standard for what is considered as high blood pressure for people over the age of 60 to 150/90. So now based on the new standard, you are be fine. However, if you are still concerned, please go seek medical advice like to your a doctor or a cardiologist.
You should get it down to 120/80 or less. Lisinopryl at 5mg usually does the trick, you might even try taking cayenne pepper capsules.