I have a rebuilt 200ci motor in my 65 coupe, the PO rebuilt it, and it hasn't been run yet. The rocker arms seem to be really loose, How do I adjust them before I start the motor, or will the lifters take up the slack when the oil pressure builds. This motor was rebuilt more than a year ago, is there anything else I should do before I start it besides prime the oil pump. I have never broken in a 6cyl. before, is it the same as a V8? Thanks.