Can injection timing or some other variable cause a random misfire? I recently changed my cam and make good power at WOT when I hit from 3000 rpm up and don't get a misfire code. If I smash WOT from a dig it causes a misfire. Compression appears to be good and pushrods are correct length. I guess that there is a possibility that one of the new ls7 lifters went bad. Mechanical or in the tune? Thanks in advance.