Check and see if the person you bought it off of still has the video that comes with the carb,tells you exactly how to set up carb
Good point. When I bought mine, I had the same problem. Could not get it to idle below about 1500 rpm. THe air bleeds fixed it. Other than that, It is absolutely the best carb I ever owned. I installed it back in 02 and havent touched it since. I still have the video that came with it. I would be glad to mail it to you as long as you mail it back when your done. Or if your coming to the Roundup, you can bring it back then.
Yes, have two on there actually. The idle is about 1,000 RPM after the adjustments, didn't change... I am taking the car down Terry's right now to see what he cans with it. Old 3 speed with 4.56 gears, wish me luck... $$$$$$
Jamie just left my house 15 minutes ago. I let him borrow an Edelbrock 600 CFM carb and a rebuilt dizzy with a brand new Petronix Ignitor. The Edelbrock carb is working at about 85%, but his Holley and Demon were both in great need of a rebuild and were probably operating at less than 50%. He still has a skip and a miss, but now he has throttle response. In fact, it scared him a little when he first kicked it. Once he has a 100% carb, we can start tracking down that miss. I'm guessing a vacuum leak or an electrical problem. The engine has a 289 Performer intake, Edelbrock heads, and Hooker headers that have been cut and rebuilt to fit that Fiat Spyder. I don't believe it has much of cam. It may even be the stock cam. I didn't hear much of thumpity-thump. I hoping he'll long on when he gets home and says how it run going home. Oh yeah, it still has the stock Fiat rear with 4:56 gears. Definitely not highway friendly. Before you ask...No, I don't have other parts to lend out.
Unfortunately, I didn't get home until 1 AM. The car ran great for about 20 miles. A group of ricers came up and started farting all over me. I left them in the dust with ease. I almost feel bad (not really, I'm still LMAO) because I could hear them shifting like crazy and could see their headlights come up everytime they dumped the clutch. They really gave it their all. I put like 20 car lengths on the fastest one out of the group of 4, was some kind of Acura. We got gas and stopped at McDonalds and while sitting in the drive through the car started idleing slower and slower until it wouldn't idle at all. It all went down hill from there. Hit the interstate and by time I got to I-285 it was missfireing and smelled super rich. I pulled off and called my dad as it was getting very late by that point and I didn't want to bother Terry anymore. I tried to restart the car and it was running terrible. It then got to where it would just cough and wouldn't start back up, sounded like it didn't have any spark. My dad came with some tools and I swapped the carb back out with the original Holley and put the Duraspark II distributor back in. Car fired up and ran normal the rest of the way home. I am not sure if the problem was caused by the Pertronix or the Edlebrock, but this car has already burned up one Pertronix so I have a feeling I may owe Terry another Pertronix module. I am going to put the Edlebrock back on tomorrow with the Duraspark II/GM HEI ignition and see what happens. Terry definantely had the car running awesome. Just have some bugs to work out still.
Sounds like the floats filled up with gas. It would take about twenty to forty minutes to get to the point where they would never shut the fuel off.
Jamie, you've got an electrical problem somewhere. We discussed it last night. Look for a ground problem, particulary associated with the ignition. For it to run good for twenty minutes or more and then start going down hill, does not sound like a carb problem to me. Not with basically getting the same results with two carbs like we did earlier. If you recall, we decided to change distributors, we turned yours back and forth a few time and found no difference in the runiing of the engine. We replaced it, adjusted the carb, and you had instant throttel response with a little miss. Petronix definitely requires a 100% Grade A electrical system. You got a fanny scratcher on your hands.
That is exactly what my dad said. He thinks the floats stuck open in the carb The car did smell really rich (was burning my eyes) and in general was running like it was flooding out. I'm still tending to lean more toward what Terry is saying, though. My gut feeling is something electrical isn't right. I am going to go pick up a new set of spark plugs, cap, rotor and a new set of wires tonight. I'm going to check all the grounds, especially the one that goes from the engine block to the body of the car.
It may as well be a Maverick as far as this thread is concerned, since it's a Ford engine and everything that applys to it would still apply to it if I were to drop it in my Maverick. And I still drive a Maverick practically every day...
90% of all problems associated with drivability are electrical but I will stand by the leaking float guess until proven otherwise. The only electrical problem that acts like your symptoms would be a failing coil due to heat. The thing that leads me away from that is that it doesn't get better after sitting for a few minutes. You might have alcohol separation in your tank (the alcohol separates from the gasoline because of moisture in the tank) which then is picked up as you slosh fuel around in the tank. The car runs bad or not at all above an idle. I don't think this is the problem because it sounds like you are running rich, not lean which is what it would be like if separation was the problem. All the symptoms lead back to too much fuel. The main cause for that is float level and the most common way that float level can change while running for twenty minutes is for the floats to be filling with fuel. That is my logic behind the decision. Take it for what it is worth.
The coil is mounted on the front side of the head with a bracket. That's where it was when I bought the car. I had to replace the coil within the first two weeks I had the car as the old one got so bad the car would only idle. I have been meaning to move it, but haven't got around to it yet. I would imagine the heat and vibration can't be too good for it. This Edlebrock carb is basically brand new.
PaulS; I started thinking about what you said later, about a sinking float. That sounds very plausible. I was thinking about a bad needle and seat, and it didn't sound right. A sinking float would take a while to fill up, and then fill the bowl with gas. Two carbs is where it gets a bit fuzzy. Thanks for making me think a bit past the obvious. Take care,
