anyone want to go in halfs on these 42lb injectors?http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1850332697these say they are factory ones so i don't know if they're any worse or better than aftermarket ones.or we could do thesehttp://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1848986856these are aftermarket.