So they have to be fast bleed? I have set many of engine with hydraulics to zero clearance and not ever had a problem, but have never set a Mopar to zero clearance with regular 2011 hydraulic lifters, hmmm, sure don't want them pumping up and bashing a piston. I wonder if I set them to zero and then backed them off 1/2 turn. I'm just looking for eliminating the guess work of the other half measured setting?:help: