Howdy, Not sure what you mean by flat spots. When I was racing my 67 GTX, at one time it would take off, then go flat for a second, then take off again, then go flat etc. The flat spots felt like the brakes had been applied. I finally traced it to a bad fuel pump push rod. After replacing the mechanical fuel pump, then finally installing a Holley electric, I found that it went good with the electric on and not so good with only the mechanical pump on. A new rod (the old one was mushroomed over a little and hard to get out) fixed the problem. I always raced with both the electric and mechanical pumps after that but that was just insurance. Bill Huff u At 12/14/201002:11 AM, Brandt Jimerson wrote: > > >Hello to everyone in 300sville! > >Say, I'm still having trouble trying to figure out why Melissa still has flat >spots during FULL acceleration! Can it be a 'fluctuating' accelerator pump in >one of my carbs? I hope not because everything >else really is already ruled out. >My fuel pump is new. My fuel filter is new. Electricalwise, my coil is good >(new), my points are correctly set at about .018 >- .019, I believe my timing is >correct but I better recheck it? The dwell is >correct right at 36. Can I have a >fouled plug? As for my timing, it is advanced at >about 14 degrees and I DO have >the correct 98 - 100 'concacioun' for it! Can it be a faulty vacuum >advance? Michael Jenkins, a Mopar expert that >used to work with Jeff Carter once >suggested that California this time of the year >has poor gas quality. I seem to >remember when she had flat spots 4 to 5 years ago, then I seem to recall when >winter was over, I didn't notice the problem >anymore at all. Maybe I have debris >in my tank but everytime I check the filter, it >appears clean. I will say this; >several months ago I was pouring gas into my G >from a 5 gal. jug (of racing fuel >to mix with the 91) and the hose accidently fell >off and down into the tank she >went! Could that maybe be my problem? I think >however I remember problem before >that though. Anyone have suggestions and thank you kindly in advance!! ;-D > >Sincerely & 300ly, Brandt H J with a G. > >[Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/