After getting the Dart up high enough (real high), dropping the center link, asking the wife for a hand ..... one hour tops, not a scratch, oh and I've never installed headers before. I read other posts that had me concerned. I can definitely vouch for the fitment of these headers. Starter and 90 degree adapter were off as well (small block) , will reinstall and button things up tonight. Not sure where others have had issues, but no stress, no fuss.