How to Assemble the Front of a Small Block

My engine is together and in the car. I read this post after assembly and to not remember a bolt with a hole in it for the cam retainer plate and there was no dripper tab on the bottom bolt. I am considering pulling the front of the engine off and looking it over. Can I pull the timing cover off without dropping the oil pan? I used a Comp double roller setup but it seemed to have a lot of slack. Thinking of adding a tensioner or changing to a true double roller setup as I guess the Comp setup is not all that good quality. My car is on a lift and I have good access to everything except dropping the oil pan. Advice here appreciated. Wondering how the chain got oiled without a hole in the galley bolt on the ones that were built that way? Great thread BTW-I sincerly wish I had read the whole thing before assembly.
Going backwards---------again-------------DR:-( I am bummed!