New old guy here. Can anybody tell me how to identify the steel lifter from the iron lifter? I've searched through a bunch of Y-Block Magazine back issues but can't find what I'm looking for. I had a cam, casting CABX, reground and used what I believe are the steel lifters (thin foot?) but right after start up it went flat. Issue #55 has some great info by Mummert about cams but I am still in the dark about lifter and cam compatability. Of course I never gave it alot of thought until this event. Yup, used molly lube, pre-oiled before start up etc. This may be a moot issue cause I will most likely buy new instead of reground next time but getting a little closure on this costly boo boo might make me feel better. Thanks in advance.