endurance for running or for lifting weights without stopping? Cuz obviously I get a huge endurance boost when lifting on steroids but in terms of cardio i don't notice much difference... If there's any intensity like a sprint they will help, if it's endurance as in distance running, well the stuff i've tried hasn't helped me there.
Should search for this, because if you're talking about something like Track, then I've seen about a dozen threads here asking the same thing... Yeah BOLD might work, buy a lot of bottles... And yes there's something similar to winstrol, it's called prostanozol, there's still clones around, look at what CEL has got... It needs to be dosed very high though, it's way weaker than winstrol mg/mg.