I need to know where the vacum line for the distributor goes on the edelbrock carb. And does the timmimg seem right 14* initial, 36*total, 54 total with the vacum line hocked back up thanks
Dude, you "hock" it up at the front right side of the carb. And you can't have 2 "totals", if you do you must have a load of Nitro in the tank of it would knock itself to death!!
There was a thread on it a month or so ago. Hook the distributor vacuum advance hose to the connection on the driver side and the auto trans modulator line to the connection on the passenger side if you have an automatic. I had mine backwards until I read that thread and swapping them straightened out my problems right then and there.
Your timing numbers seem fine. Initial. Then with mechanical advance at rpm, then total with high rpm, no load (vacuum). 60 mph with just a tiny bit of throttle needs alot of spark lead for the burn to complete. make sure the port you use has vacuum at idle to keep your temps down at the stop lights. rick
DON'T hook the transmission modulator on the ported vacuum port, like pictured. At idle and part throttle the transmission will "think" the engine has a high load condition because of low vacuum readings and the transmission will operate with high line pressure resulting in late, hard shifts.
The above picture is how an Edelbrock rep at the AutoFair told me how it goes too. Where else would you run that line? There's no other fittings on the carb out of the box.
from the factory, the line to the tranny is hooked to the manifold. so any port below the throttle blades(butterflies) is for tranny. any port above blades for distributor. as far as timing goes, you have initial, vacuum, centrifical, and total advance. if you have a heavy vehicle, use a light spring and a medium spring, for centrifical advance. there are different canisters for vacuum advance(#s are marked on the canister). total advance should be around 32 38deg. depending on cam size, headers or manifolds,weight of car, and rear end gear ratio.
From the factory most cars would have the modulator line connected to a fitting on the manifold. If you don't have that you can use a T-fitting and connect it to the same manifold vacuum port as the vacuum advance. Also, put the vacuum advance on the manifold vacuum port, at idle and cruise rpm the engine has a lean mixture that needs more timing to burn efficiently. It will enhance throttle response, increase gas mileage, and let the engine run cooler at idle and low speed.
Best to run full vacuum to dist. Ported is more for smog motor applications to reduce emissions at idle by reducint timing. Transmission vacuum modulators need a minimum amount of rubber line in the loop.
Keep this in mind....in the 60s there were no ports for "ported" vacuum so it was impossible to have it hooked to anything but manifold vacuum. You couldn't do it if you wanted to. These new universal carbs that are made to work on smog engines and pre-smog engines gets everybody discombobulated. I think most guys want their rides to run and perform like pre-smog engines so forget about the ported vacuum for anything on an engine. It was simply not available back then.
Get yourself a vacuum gauge if you don't already have one. With the engine idling, connect it to various vacuum sources on the engine and carburetor and observe the readings. As stated, connections to the intake or below the throttle plates on the carb should provide full manifold vacuum. Ports on the carb above the throttle plates should provide ported, or timed vacuum. But there are a few odd exceptions where you might find a manifold vacuum source above the throttle plates. Don't think I've ever seen a ported vacuum source below the throttle plates, but it wouldn't surprise me. Then connect your gauge to full manifold vacuum and mount it inside the vehicle so you can watch how it responds to different driving conditons. Try to maintain the highest vacuum readings possible while cruising and watch your fuel mileage increase!
You can not tell simply from looking at the location of the port on the carb. Every carb that I ever checked on a 50s-60s era GM car used a port on the side of the carb that is well above the butterfies for the vacuum advance. What you can't tell from looking at it is that the port enters the carb and then takes an immediate turn down through the body and aligns with a hole in the base plate that continues on down and into a chamber below the butterflies....IE manifold vacuum. Put a vacuum gauge on it if you don't believe me. Without a gauge you might get fooled. Don't assume anything just by the location.
Have to disagree with you on that Tommy, but that is just plain wrong..all carbs back to the late 40's have had a provision on the carb for ported vacuum to the dizzy......
I don't know about 40s carbs. I would put a vacuum gauge on that port before assuming that it was in fact ported. You might be surprised but I don't know without a gauge. I'm talking about 50s and 60s GM carbs and distributors. They had tubing from the carb to the distributor and they were in fact manifold vacuum even though the tube entered the carb above the base plate. You can't tell by just looking at it which I think adds to the confusion. It looks like its above the butterflies but it ain't.
Here are the vacuum advance ports on different year Rochester 2 bbls. from the 60s. The body is upside down but if you look closely you can see the port goes straight in and aligns with a small hole behind the venturi. Being upside down that hole aligns with a hole in the base plate. Here is that hole in the base plate. Hard to see but it is there. That hole comes out between the 2 ventuis in the hole for the base plate screw hole above the Phillips head in the center that holds it to the body. It is the dark spot on the right of the screw hole. As you can see it is in fact below the butterfies and therefore manifold vacuum. I never heard the term ported vacuum until reading it on the internet. No such term existed in the late 60s. I was sure from my experience that the vacuum at the vacuum advance should be high at idle on a street car. Honestly I didn't know why, I just knew that it was. It's a hard myth to dispel. I happened to be doing a 3-2 setup and had some Rochester carbs apart so I spayed some carb cleaner in the port and it came out at the hole shown above. I had to push a small tie wrap into the base plate to find out that it ended up below the butterflies in the screw hole. I felt so much better knowing that I wasn't losing it and that my memory was correct. You can not tell what type of vacuum you have by where it is connected to the carb. If you are using a GM distribtor with a vacuum advance you need manifold vacuum and unless you have one of the universal fit all modern carbs you won't have a choice. I'm pretty sure that this applies to all the other makes except the 49-56 Fords but I won't swear to that.
Jeez. You can go to the Edelbrock website and it will show you how the thevacuum lines are routed. That pic up above is WRONG. That Edelbrock rep needs to do his homework. Looking at the front of the carb, the fitting on the left is TIMED VACUUM (Distributor advance port for emissions controlled engines). The fitting on the right is MANIFOLD VACUUM (Distributor vacuum advance port for non-emissions controlled engines). That is directly from the carb instructions that came with the Edelbrock carb I have. As I said earlier, you can verify this by going to the Edelbrock website and printing out the instructions.
Almost every 50s and 60s car I ever tuned up had vacuum on the distributor vacuum advance at idle. Always had to remove and plug the line to set initial timing. Ford used the ported vacuum on some 70s cars with the dual diaphragm advance. Usually to work against the manifold vacuum and back off the timing as the throttle opened. This was usually done through a temperature controlled valve.
Agreed. I have "Motors" manuals dating back to the '50's and all of them dictate that for a tune up to disconnect and plug dist. vacuum to set intial timing then recheck with vacuum connected and rev the motor to around 2000 to see if advance was working correctly for total advanced timing, generally around 32-36 degrees, be it Ford, GM or Mopar. If you have it connected to manifold vacuum instead of port vacuum you would have the timing "all in" as we called it at idle defeating the purpose of have a advance at all. And it always if connected to manifold vacuum would cause a need to reset the idle as it causes it to increase 200-300 rpm. On hot street motors or drag cars we would connect to the manifold to make the advance be there from the get go, but only then. I'm by no means a expert on tuneups but I'm 57 yrs old and worked at a Ford dealer when I was 17 as a line mechanic in the days of Cobra-jets and Boss 302's so I've did a few over the years. Just my 2 cents.........BobbyD
tfeverfred - Havent seen a picture of Candy Bar since the 50's. I had that same pic. She was caught with an oz of weed & got 20 yrs in the slammer - never to be seen again. TTOY
<TABLE style="WIDTH: 22em" class="infobox vcard" cellSpacing=5><TBODY><TR><TH style="TEXT-ALIGN: center; BACKGROUND-COLOR: #ffe1eb; FONT-SIZE: 125%; FONT-WEIGHT: bold" class=fn colSpan=2>Candy Barr</TH></TR><TR><TH style="TEXT-ALIGN: left" scope=row>Born</TH><TD>Juanita Dale Slusher July 6, 1935(1935-07-06) Dallas, Texas, USA </TD></TR><TR><TH style="TEXT-ALIGN: left" scope=row>Died</TH><TD>December 30, 2005(2005-12-30) (aged 70) Victoria, Texas, USA </TD></TR><TR><TH style="TEXT-ALIGN: left" scope=row>Alias(es)</TH><TD class=nickname>Candy Barr</TD></TR><TR><TH style="TEXT-ALIGN: left" scope=row>Eye color</TH><TD>Blue</TD></TR><TR><TH style="TEXT-ALIGN: left" scope=row>Hair color</TH><TD>Blonde (natural Brunette)</TD></TR><TR><TH style="TEXT-ALIGN: left" scope=row>Ethnicity</TH><TD>White</TD></TR></TBODY></TABLE> after she got out of the slammer in 63..in 68 she went back to stripping
Juanita Slusher, who went by the stage name Candy Bar is who that is. She was an exotic dancer and made some early sex movies as well. She got 15 years for possession of 4/5 of an OZ of Pot but only did 3 years time after testifying against boyfriend and mobster Micky Cohen. She went on to become a well known stripper again after her release both in LA and Las Vegas. She was also tied to Jack Ruby, the guy who murdered Lee Harvey Oswald. She is also considered the First Porn Star.
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