I really like the Passenger side mount bracket that Old air has it is not big an obtrusive like alot of them.

http://www.oldairproducts.com/catalog/product_info.php?cPath=60000000_69000008&products_id=3463

Larry is right, if you have the coil mount dist cap, you will need to get new plug wires and a new cap for an external coil. You can still use your same coil though, just need to find/fabricate a brackets to bolt it to the side of the engine. Here is a pic of mine (ignore that idiot bracket tho, it never worked)




Hope that helps!

76 Chevy Stepside with a '68 230ci