Join Date: May 2007
Location: Baltimore Maryland
Re: Edelbrock carb?
There is nothing wrong with Edelbrock carbs. It's simply a calibration issue. It's probably more to do with the engine than the carb, but the carb gets the bad rap. Is the car an auto or manual? If auto, will it idle in park/neutral? Is this issue when you put it in gear? What metering rod springs are you running? 1st you will need to set the timing at about 18*-19* initial. That is a good overall starting point. 2nd you need to use a vacuum gauge to see how much vacuum the engine pulls at idle. After you get that reading, you may need to change the metering rod springs accordingly. The stock springs are orange. The orange springs(5" of vacuum) is generally a good overall spring, but if your cam doesn't make sufficient vacuum to keep the metering rods down in the lean mode at idle, you will be getting fuel from the main nozzles at idle. With the car idling, look down the primary bore of the carb and look for fuel exiting the main nozzles. If this is happening, it's because the metering rods are up in the rich or power stage. This is due to insufficient vacuum to hold them down in the cruise or lean stage. You need to start by setting the timing and getting a vacuum reading.
Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)