Mike Mileski Posted February 18, 2003 Share Posted February 18, 2003 I just got my '71 240 running and through emissions after purchasing a brand new 670 cfm Holley Street Avenger carb. Everything seems fine except when I really get on it, then it seems to just go flat at about 4000 rpms. If I get on it more gradually, it seems fine. Any ideas on what might be happening? I thought about lack of fuel, but I have a 3/8" feed line with one of those Mallory gerator pumps. Any advice appreciated. Mike Mileski Tucson, AZ Quote Link to comment Share on other sites More sharing options...
pparaska Posted February 20, 2003 Share Posted February 20, 2003 Hey Mike, Sounds suspiciously like the secondaries are opening too fast. Or that the pump/squirter isn't right. Should be damned close out of the box though! Quote Link to comment Share on other sites More sharing options...
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