engine swap problems

You need to read the instructions. The mounts you have require that you shorten the driver side saddle and drill a new hole. This is for oil pump clearance. Chrysler solved this by building the Direct Connection K-member where they cut the saddles and moved them back. Instructions for doing this yourself can be found here:

http://www.bigblockdart.com/techpages/dck.shtml

and here:

[ame="http://www.youtube.com/watch?v=mnaM_jHLi08&list=UUqvjc-8llEE-JKNFYw30-NQ&feature=share&index=5"]DC K-member 04 part one a.mp4 - YouTube[/ame]

[ame="http://www.youtube.com/watch?v=G594IRGPtAw&list=UUqvjc-8llEE-JKNFYw30-NQ&feature=share&index=4"]DC K-member 04 part two.mp4 - YouTube[/ame]