Misfire at 2400 rpm to 3000 rpm (Page 1/1) Baldeagle MAY 12, 04:40 PM I have a 1988 Formula, and at low rpms up to 2400, it runs like new, but from 2400 rpms to 3000 rpms, I get a misfire. It tends to go away as it gets warmer, but not entirely. Over the past few years, I have replaced the fuel pump, plugs, and distributor. Plug wires are getting older but seem to be in good shape. I do have a new fuel filter to put on. Does anyone have any ideas?