I bought the Barker unwarping tools back in 2007 for $200 and used it on several quadrajets. I followed their torquing instructions and broke a float bowl on the first one. Too much torque, too soon! However, I did the rest gently in steps and got PERFECTION on all of them. I have tried the oven heat treatment thing when in a hurry, and I've tried just using small box end wrenches and snugged in steps for a few days until they became flat. Both ways resulted in good single gasket sealing. Some changes in teperature were used such as sitting them over the heat register in the floor at home during the winter, or leaving them in the garage in the summer 100 degrees daytime to 70 degrees at night, etc. The one thing I found is that snugging them down, then a few hours later would result in looseness again, and again, until they felt firm permanently. A hair dryer could speed things up. Now 15 years later I can open my carburetor to change front jets in just a few minutes. I rub chapstick into the gaskets and use a toothpick to clean the little holes. So, I can open and close the carb quickly and it's all still like new and leak free. 1. The Barker tool 2. Chapstick on the gaskets. 3. Pure gas "ethanal free" or Star Tron additive in the tank. 4. Short wrench on the 4 hold down bolts or nuts. 5. ALWAYS, gentle tension on the air cleaner wing nut!!!
I don't see where they sell it anymore but do offer a service. http://quadrajetcarburetors.com/ https://www.v8buick.com/index.php?threads/unwarping-tools-from-barker-gang-garage.121151/
I have pictures but putting them on here is the problem. I don't have an avatar for the same reason. The best feature is the holes and recesses in the plates allow the air horn and bowl to lay flat without pulling tubes, etc. Makes it easy. Looks like these kits are no longer available.
Here's the one I whipped up. I used the heat method. Pop in the oven and heat till jig is 300* Cool over night with checking every 1/2hour or so with a little 'snug up' on the bolts. Only time I have ever had to use 2 heat cycles was when I first tried it out. I warped a junk body on purpose about 1/8" Works for air horn as well with a few well placed small c clamps/kantwist clamps. Always a little filling involved. Works with both airhorn and main body pretty much assembled. As far as the mounting bolts go. Best luck I have had was the smallest diameter 1/4 nut driver.
I will try to do a video on the next one I do or if I find another junk one to demonstrate. Till the here are a few before and after of one I did a while back.
Really cool, I may need your services if you’re available. I’m working on a 72 Stage 1 now. I think I have managed to flatten the lid enough to where it will seal and function as it should. Idles good, road test is next.
FWIW. I could whip up more of these if there was some interest. I would basically put a 'kit' together with instructions based on what has worked for me.
