My 95 f150 5.8 e4od has severe issues with cold. Worse than any vehicle Ive owned. Takes two trys to stay running, extreme lack of power, and very spiradic rpms when driving. Running down the road with foot on pedal rpms read about right. When I take my foot off, rpms will drop 500-1000 and it rev like in neutral till enough throttle is applied to reach proper rpm. Then it will put power down again. I think the rpm problem is more than it just being cold because it will still do it after its warmed up. Two part question: first, does anyone have any idea what could cause rpm issue? Second, any tips and tricks to help with the cold blooded issue?