No relation at all...
One can have high cholesterol and low BP or vice versa. Hypertension is also a "silent" killer since it is asymptomatic except when it is very high (as in the 200/120 range).
What might be of interest to you (and which isn't really mentioned in all the hype that anti-cholesterol drugs receive -- like Lipitor, which is now one of the most prescribed drugs in the world) is that while there are studies to show that reducing cholesterol reduces your risk of heart disease (and it is a very modest reduction in risk, btw) there has never been a study that showed that reducing cholesterol lengthens your life.
Truthfully, the MAJOR risk factors for heart disease are still: genetics (most important), smoking, hypertension and diabetes -- probably in that order.
Bumps in Total Cholesterol from AAS are transient, but if you are continually going on and off cycle, you could in theory be exposing yourself to a higher risk for heart (and vascular) disease.
Hope that helps,
Jerol (M.D., btw

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