Ford Muscle Cars Tech Forum banner

break-in

  1. 351C 4V Break-in?

    Mustang Pages (1965-1973)
    Hey, so I finally finished my 351C and started it up on a test stand today. But I am having yrouble withthe break-in. I have a COmp Cam Flat Tappet 275DEH, its a 2000-6000 RPM cam, Comp cam says to break it in at 2K-2.5K RPM, but I cant keep it running at that low of an RPM, it wants to run...
Top