If anyone has tried this oil pump part, please let me know if this item is really all that is claims: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll? ViewItem&category=6755&item=2469004517 This item also: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll? ViewItem&category=6755&item=2468255286 I am just wondering if I should consider investing in these two parts. Do they improve the oil circulation/filtration in the AMC V8s? Thanks in advance for the input folks!-Lu-