HELP...stumbling idle/accelartion

[rcpilot]

engine intermittenly stumbles at idle while in gear.. place in neutural it stumbles less.. upon slow/mild accelartion it stumble a little and then sometimes heavely.. get on it hard and it goes away.. Have new control module..new distributor advance kit... Could it be my edelbrock needs rebuild?? /forums/images/graemlins/eek.gif

 

[dyeager535]

Sounds like a vacuum leak or timing issue, at least in order of likelihood.

 

[Stoopalini]

How long since a standard tune-up? (plugs, wires, cap, rotor, fuel filter, air filter, etc...)

Has this been going on for a while? Could it just be bad gas from your last fillup?

Thomas.

 

[white-rhyno]

I had the same problem. Check to make sure the jets for your acceleratpr pump are not plugged. Jar the throttle to see if they squirt. One of mine wasnt squirting, pulled it apart and cleaned it. It helped alot.

 

[rcpilot]

I tuned it it recently all but wires...no vaccum leaks..both accelarter jets squirt equally..started about a week and a half ago.. I was towing a rental trailer to move and started noticing it..1 tank full ago.. started using Texaco gas then /forums/images/graemlins/eek.gif ... filled it up with super on Tuesday..I'm putting a carb cleaner in it tomorrow...