Later timing covers had a plastic piece bolted to the face of the cover with the timing marks on it. It's usually one of the first things to break and get thrown away. Not one of their "better" ideas. You can get timing tags from some of the repro places, I think.
The other problem you may face is not having enough motor mount holes in your block, in which case you would have to buy motor mount adapters, also available from Performance Years - and Ames - I believe.
