endurance?

Hi there,

what steroids can i take to increase my endurance?

i have been doing abit of research and have found that trianabol(?) winny and Equipoise

will these steroids incrase endurance with a hard cardio schedule and i want to keep muslce mass off and dont want to increase muscle mass so would these steroids also keep off muslce mass?

thanks for any help.

i have also read that testotrone allows to train harder and longer correct???

also would stanozol put on muscle mass if i was on a exclusily cardio programme?

thanks again