I have never used any anabolic drugs/etc., but have used many, many supplements.
I am not able to successfully achieve "the pump" without supplements, however.
I use very high doses of nitric oxide stimulators, creatine, test boosters (not steroids -- mostly/all just placebo), high sugar (yes, simple sugars), high caffeine, and high protein/calories -- then start lifting and push as hard and long as possible. I get "the pump" like this, but without the previous mentioned stuff, I can't get a true pump. I know pumps are not really indicative of much, but I like knowing I can get the steroid pump without steroids/prohormones, but I'd like to get it without ANY supplements.
I have been training around 8 years and I'm very, very far from a beginner or even intermediate.
I have tried extremely high reps, low reps, medium reps, and low and high reps -- every combo, every angle, and cannot get " the pump" properly if I'm not taking supplements and etc.
I'm not asking for specific workout advice -- more so, just on how I can get the pump sans supps.