If your BP is that high, you should probably get it looked at before jumping on cycle. Talk to your doctor about getting on some kind of BP medication. Also, if you are on a doctor prescribed medication, I would NEVER discontinue it to run a cycle. Exactly how high of a BP are we talking about? Cause when I am on a cycle that includes methylated orals, it's common for my BP to be in the high 140's/low 90's.
If you're just going to run a short 6 week cycle or so, I'd recommend supplementing hawthorn berry, celery seed extract, and CoQ10 along with the cycle. That helps control BP. Hell, get you some RC Viagra. that helps keep BP in check very well and will having you walking around with a 24/7 boner that can cut diamonds at the same time.