"" wrote: > "NCIII" wrote in message > news:3UXwe.11116$ snipped-for-privacy@bignews3.bellsouth.net... > >
When a vehical vapor locks it is because the fuel in the line under hood gets hot enough the boil to vapor under pressure and only vapor is delivered until line is purged. A electric fuel pump can boost pressure and raise vapor temp enough to keep fuel in a liquid state longer. I would still strongly recommand you get a vacum gauge to put on engine to see what it is doing as you try to bring timing back because I still do belive that we are dealing with a vacum leak here that over advanced timing allow it to idle with lean mixtures cause by leak. You can tell a lot about a old engine with a vacum gauge and it is a good tool to have.