Doug, Could be the accelerator pump, but here's an article that discusses how the idle adjustment being off can cause 'puddling' which is a temporary rich condition caused by idling. It bogs briefly until the extra gas gets sucked out. http://www.thecarburetorshop.com/Troubleshooting.htm - Jim Jim Altemose, Long Island, NY '63 Polara 500 (Max Wedge) '63 Polara 500 (383) '65 Belvedere I (Street Wedge) '71 Bronco On Wed, Aug 1, 2012 at 10:07 PM, Doug J <63sprtfury@xxxxxxxxx> wrote: > Hey all, > This summer my car has been kind of hesitating from take-off, not real bad, > just kinda flat for the first bit, then ran fine. Last Friday night at our > local cruise, it started hesitating quite a bit more, and not wanting to > idle at stops while in gear. Took it out on the highway to "clean it out" a > bit and it acted like it was at half throttle at best. So, tonight I > changed the fuel filter, it was bad, and took it out for a ride. Ran pretty > good at first, but after a while, the rough idle was back and so was the > hesitation. Increased the idle speed a bit, and the accelerator pump stroke > as well. Same. Also, if you rev it up a bit in neutral, it takes a minute > or so for the RPMs to go down to idle speed. Linkage is not sticking, as > even holding the throttle lever closed doesn't make it slow down any faster, > you just have to wait for it. At say 1500 rpm in low, you can hammer it and > it responds nicely. It will also downshift and accelerate fine when floor > boarded. Seems to just be low rpm related. > Only change I have made to it was putting on a Mopar electronic ignition > system. Starts wonderfully with it btw. It is not a kit, but all parts I > found in my "stash". Distributor and control box are very low mileage > though, I'd say 1000 miles or so, although they are probably 20 years old. > Also, I haven't done any "tuning" to the igition yet, due to the rough > running which I have been thinking was all carb probs, so it's only at 5 > degree advanced at this point. > Here's the particulars > 68 383 HP, stock except for "Purple Shaft" cam > Edelbrock 800 AVS (5 or 6 years old) > Dual exhaust off manifolds > Mopar electronic ignition with orange box > Automatic with stock convertor > Fresh premium gas > > Any thoughts? Always put stabil in the gas for storage, but carb might be > getting gunky inside? Could ignition timing be part of it? > > > -- > Doug, > '63 Sport Fury 'vert > > -- > -- > -- > Please address private email -- email of interest to only one person -- > directly to that person. That is, email your parts/car transactions and > negotiations, as well as other personal messages, only to the intended > recipient. Do not just press "reply" and send your email to everyone using > the general '62-'65 Clubhouse public email address. This practice will > protect your privacy, reduce the total volume of mail and fine-tune the > content signal to Mopar topic. Thanks! > > 1962 to 1965 Mopar Clubhouse Discussion Guidelines: > http://www.1962to1965mopar.ornocar.org/mletiq.html and > http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. > -- > You received this message because you are subscribed to the Google Groups > "The 1962 to 1965 Mopar Mail List Clubhouse" group. > http://groups.google.com/group/1962to1965mopars?hl=en. > -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en.