With biceps, much of the work should include a very forceful squeeze at the end of each rep. The hard flex will drive blood into the muscle.
The incline concentration curl is great for hard contractions. Just push the dumbbells together and squeeze the heck out of them.
related posts
How to Gain (or Lose) Muscle
Just picking up heavy objects will only work for so long. Here's how to use high-intensity methods to accelerate gains.
Which is better? Here are the facts.
This variation of the farmer's walk ramps up the core, lat, and grip work required. Give it a shot.