I'm 5'10", 220 right now, about 20% BF, injury caused that, and I have a question with vascularity.

I wrestled for about 10 years, and was always very fit, easily 5% bf and under sometimes, but i never seemed to have any veins??? Now, i used to smoke occaionally, but i dont think that would cause me to be unvascular. My family has a istory of vascular diseas....how can i get veins, and improve my vascularity, no i used to run daily for miles and tons of sprints, but no veins or anything...I dont know anythign about this topic, is there any one that can fill me in so i can get arnold veins/...lol...thanks guys and gals...

HB