any1 with a edelbrock carb coudl u let me know how u are tuneing yours. i ahve a 750 thanks

 

you might want to start by reading the owners manual.

 

oh really?? thanks smart ***, if your not gonan help then don;t waste my time by posting at all. I wouldn't ask if i didn't read the manual. the way in there to tune it isn't workin to good for me cause i have such a big cam u can't tell if u have a 20 rpm diff.so if any1 coudl help me out here thanks

 

Well maybe if you knew how to communicate effectively you wouldn't run into responses like the one I gave you. Your ignorance is not my fault, it's yours. If you want specific answers, ask specific questions.
Speaking of specificity, I can specifically tell you that with that attitude you'll get no further help from me.

 

I am a new user and I am not sure if I can help but I will try.

The edelbrock carb is a very simple carb. the left screw controls the left side and the right screw the right.

With the engine off, Close both screws then open them 2 turns.

This should give you a good base point.

Start the engine, see how it runs, rev it up a bit, if ok give it the juice, (give it a quick full blast kicking in the secondarys of the 4 barrel. If it seams to bog out a little bit before it revs up close the screws a bit mabie 1/4 turn and try again. that will lean it out.


If you are getting a bit of smoke from the exhaust that has a gas smell lean it out also.

If they are open too much it will backfire when you rev it.

You may even have to adjust, then drive the car, pull over and readjust. Use your ears and the way the car responds to adjust it.
You will get it right. Also make sure the engine is warmed up before you do any of this.

One thing I have learned about a modified engine is that sometimes the factory specs for a tuneup go right out the window.

Also check your timeing. You may have to adjust that a little bit by ear too.... Good luck....Frank Mars....

P.S. Don't let the guy that said read the manual **** you off....He needs to check is own attitude. Telling you to read the manual is stupid because if the manual had helped you you would not be posting here. not to mention that the manual for the edelbrock carb is very basic. You can also get edelbrocks phone number from their website and call them. they are very helpful and it is a tollfree number....Good luck and go beat some mustangs....

 

yeah man, dont listen to ignorent comments like that. i cant stand when people post stuff like that on my threads, i always post on here as a last resort. im haveing some trouble tuneing my edelbrock carb too. i have re-set the idle mixture several times now and im haveing problems with the rpm's bouceing up and down at stop lights. it says to do it with the air filter in place, but that seems totaly impossible to me unless the engine is cold. otherwise i will burn the hell out of my hand.

 

First, idle flux is not just the carb. It could be vaccume lines, your A/C, or ignition systems. Like said above, use the idle mixture screws to adjust the carb for a lean-best idle. This will avoid plug fowling and excessive fuel consumtion. If the engine seems to run rough, adjust the mixture screws until you get a very smooth idle or as close to it as you can get. you can do this with the air filter off, as long as your air filter is relatively free flowing (such as a 14x3 element). If the idle is rough at best, check your timing and sparkplugs, they could be misfiring. This will also cause idle speed flux under load. You might consider upgrading the ignition if you have not yet done that. Also check for vaccume leaks if your idle is smooth but the speed is inconsistant. You may need to clean out the carb and adjust the automatic choke, and possably change the jets if the problem continues throughout the powerband.

You may also pick up a copy of the edelbrock owners manual from edelbrock or your local parts store. It comes in handy for times like these.

 

my carb,intake,ignition system and engine block are all brand new. all the hoses are brand new too. i shouldnt be haveing any kind of vacume leak, but i have heard from alot of people it could be bad gas. my car was running 100% perfect before i filled up at a different gas station than my usual one, useing 89 octane(wich probly doesnt get used alot at this perticular gas station). i just put some 94 in it at my usual gas station and it seems to be running alot better and the rpms are more stedy, but i filled up with a quarter of the old **** in it. my other posts/threads will explain my problem in more detail, this is 89formula#1's post so i wont go into it on here.

 

Edlebrock carburetor information
http://www.cardomain.com/member_page...217306&page=26