Hey guys, I'm not sure my stove pipe is doing anything for my choke. (Carter AFB). If I pull the end out of the exhaust manifold, should i be able to feel vacuuum or anything? How can I check this? Do these things frequently clog from carbon? I have a brand new one I bought from CARS it's only been on since December. anyway that's a small worry. My other problem is, upon acceleration the car will surge or pull back. It stumbles. Almost feels like a bad transmission, but I can tell the issue is in the engine. Feels like bad gas, also. But I've been through 3 tanks already and it's the same thing. It's usually more frquently-occuring when the engine is colder (first 5 minutes of driving) rather than warmer. It does not do this while the car is not moving. I can rev it beautifuly and it's smooth running with no problems. Time for a rebuild? Just got my tax return and I'm thinking I'll use some of that on having the carb done.. There's a local expert around my town who would do it for about $80. Doesn't have a shop or anything legitimate, but as soon as you mention the word "carburetor" in my town, this guy's name comes up.