hello in new to moparforums hope u guys can help me out...Just spent 6 months over hauling my 1972 dodge challenger 340 wedge,with an edelbrock 600 cfm 4 barrel carb, i got a manual choke new rockers and lifters,pretty much everything is new cept the carb which i put in about 5 years ago..the problem is im burning rich an losing idle on accelaration and i cant figure out why????

I ordered a tuning kit but i dont have high hopes i was pondering on switching to a new holley carb maybe a 650...any ideas are welcomed

 

how do you lose idle on accelaration?

 

On take off when I start to accelarate there is a drop in rpms,feels like about to stall and than they go back to normal with more gas...

 

oo ok that sounds like accerlarater pump. dried/ bad seals.. it kinda common. or timing is out

 

magoo -

Assuming the timing is correct, rebuild the carb (and clean EVERYTHING). Accelerator pump, power valve problem the squirters getting clogged etc could cause that. Also make sure the flow circuits aren't clogged and the the pumps are adjusted corectly.

Quick refresher ...

http://www.youtube.com/watch?v=INmSG7uWuYo

Archer

 

guys thanks for the tips ima keep you posted...on another note i installed a purple cam and im idleing round 900 im really thinking about pushing that to 1100 and getting a new carb ..what do you reccomend???

 

1100 is too high if you are an auto
your carb. is fine
i'd just take the time to try and tune it in
it'll be cheaper than a new one

 

Got my tuning kit for the eddy gonna see how that goes but im still worried about my rpms...On take off when i release my clutch my rpms shot down and theres hesitation i dont know why i had the same problem before the rebuild too i figured after taking everything apart and all the new parts i woulda resolved the issue

 

Talkin bout carbs is there a difference on installing the carb in with a spread board gasket (340 oem) compared to a square board gasket????? could that cause my car to be running rich cause i think when they installed my eddy thay used a squre board...

 

i honestly cant see that it would make it run rich.. the gasket could rip and get sucked into head.(if i understand your question right) but it would just burn up and get pushed out. if the gasket ripped under the flange (unlikely) it would run lean.