Hey guys ( and gals)...longtime follower...never posted before...I know I'm late to the party.. but for whatever it's worth, back in the '80's (when Keith was still alive), I had Keith Black Racing Engines do the build on my 426 hemi...it has an Engle solid lifter cam.. ( the oil I was using at that time was Kendall, recommended by them, as it still had zinc in it).. I was told by them to pick a can of GM Engine Oil Supplement and when it was time to first fire the engine (fuel, spark and timing, coolant et al...all ready to turn the key) to remove the intake and dump that can of Oil Supplement directly over the cam and lifters, re-torque the bolts and hit the key...immediately bring the engine to 2300 rpm, AND DO NOT LET IDLE FOR THE NEXT 40 MINUTES...obviously this gives the oil saturation to the cam and allows the cam to burnish to the lifters...they also said that if, for any reason, it had to come off a high idle during that break-in...to just shut it off completely....it's been 39 years and that engine is still running and I've had zero problems with it....( except keeping my foot out of it)....hope this helps