Here is thier online cataloging.
Holley Reman'd
After just playing a little phone detective I found that the service kits and so forth are supplied by a company called ADP. Their phone # is (425)572-0448 or toll free 800-225-3596. The service kit is all wear parts such as seals, bearings, and internal gaskets. The oil lines are supply lines but have been dropped do to the fact that you just use basically a brake line. They told me that a service kit for a 1983 Regal is about $135. Their website is
www.turbos.com If I can be of anymore assistance, let me know.
If you can work it into that page on your site that would be great. I just wanted people here to be able to find this info.
P.S. ADP does not use the same part #'s as holley and you would need to contact them to get price and their part#.
P.P.S If you are in need of a return hose, they told me to have you contact them and they will do their best to locate one.