comp 822 lifters

What do you have those in? They are not designed for "extended street use". It's right in the Comp description. Yes, they are designed to bleed off. That is their intent. They are variable duration lifters, similar to the Rhoades design. They are for use with larger hydraulic camshafts to help build a better vacuum signal and improve idle quality and bottom end torque. They pump up as RPM and oil pressure increase.

EDIT: Scratch all that. I had a dyslexic moment. I thought that said "882" instead of "822". The 882 lifters are the variable duration. The 822 lifters are not. My apologies.