Carburetor help

I recently had my Rochester 4bbl car rebuilt for my 86 cutlass v8 307 and up to recent it has been burning rich again fuel smell and black smoke so basically why would I have trouble with it and when I give it gas it kind of hesitates but not so much just like if a blast of fuel goes thru line and then it takes off any help is greatly appreciated... Thank you.

oxide80 said:

Is it an electronic EM4C?

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I believe so...

pontiacgp said:

Have you talked to the rebuilder about the issue?

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No I haven't, he's located out if town and all he'd probably say is that 90 day warranty is up but I can try.

olds307 and 403 said:

Any codes?

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Do I use a paper clip by under where radio sits or something like that

olds307 and 403 said:

Any codes?

Click to expand...

Do I use a paper clip

oxide80 said:

Im "relearning" the electronic Rochester Carbs that I learned in Voc school 25 years ago. My 1987 442s carb was swapped out prior to my purchasing it and was running very rich as you describe. Along with idle mixture screws, there is the Throttle Position Sensor, and Metering Control Soleniod that needs to be adjusted on the car running.

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Where is the metering control solenoid located

olds307 and 403 said:

Any codes?

Click to expand...

Do I use a paper clip

oxide80 said:

Im "relearning" the electronic Rochester Carbs that I learned in Voc school 25 years ago. My 1987 442s carb was swapped out prior to my purchasing it and was running very rich as you describe. Along with idle mixture screws, there is the Throttle Position Sensor, and Metering Control Soleniod that needs to be adjusted on the car running.

Click to expand...

Where is the metering control solenoid located.....i did in fact have the throttle position solenoid replaced on it also time of rebuild how would I go about adjusting these things...