Gio, since I am the first to reply, this issue you are having seems to be a problem with 440 and Hemi's. There has been many postings on this subject. At the top right side of this page you will find a search box. Type in Vapor Lock press enter, the search will take you to every posting on this sight that has been discussed between members. Also you will find within these posting the fix or solution to your issue. Sorry I don't have enough experience with this issue to give advice, I'm sure some one else will chim in. But to get you started you can review past posts on this subject