I'd personally keep up the cardio regime to strengthen your heart and cardiovascular system. Before cycle I was at 120/78, and after my cycle it's been sitting at 135/80, and peaked at 150/100. I pulled the plug when I saw how high it started climbing, as many other members mentioned, high BP is a very significant factor in early mortality.
If you're adamant on starting, monitor your BP daily, and be selective on the compounds you want to run. Tren was especially touchy for my BP. If you touch 140/90 either pull the plug or take the medication. Pressure over 135 starts damaging your kidneys.
Good luck brother