carb problem

[slivertuks]

hello I'm quite ignorant when it comes auto repair, but I'll try to make sense out of this question. I have a 1984 . el derado I'm having fuel problems.I opened the hood and while car was running I pulled on the accelarator rod
and revved really high before the rod reached the end point, then I had someone push down on the gas pedal and there was quite a bit less power and the rod hit the end point and of course wouldn't
rev any higher. I'm wondering if this is normal? Also when passing another
car going about 60 mph it losses power then when I slow to about 50 mph it slowly goes back to normal. If anyone reads this thanks for the patience, sorry I don't know the name of the parts. Any advice would be appreciated.

thanks alot

[Wgoodrich]

I am not sure of the model you have. I believe you have the older conventional carberator.

I suggest you check both your timing and replace your fuel filter.

Second to check if the above didn't help, I would check the accelorator pump that gives the carb a shot of gas as you push down on the accelorator. If you push down your accelorator you should see the accelorator pump squirt gas into the throat of the carb.

Next I would check your advance machinisim of your distributer. If this distributer is frozen or the vacuum hose is leaking then the distributer can not compensate for the rapid acceloration.

Last perform a compression check.

Suspect it may be one or more of the above causing your problem IF you have noncomputer and conventional carberator.

Hope this helps

Wg

[slivertuks]

Thanks changed fuel filter runs 100% better.
again thank you