weber 40dcoe jetting
 

ok now that i fell really retarded for asking where the jets are.... since i pulled the little wingnut off the top and noticed they were right there in front of me lol. i have a question as to jet changes. the car runs fine and doesnt stumble or anything so i think i lucked out with getting this carb. it came from up north and im at sea level so im thinking i still need to richen it up some. the plugs are a little on the white side also. im running a 140 fuel jet and i wrote down the wrong number for the air jet so i dont have it at the moment. my question is if i want to make it a little richer than it is can i just go to a 145, 150, or 155 fuel jet and leave the air correction jet alone? or should i change it as well? and which way should i go with it if i change it? im trying to gain a little power if i can and dont care about fuel economy. wouldnt mind being able to pop some fireballs also :nod:

Air corrector jets are mostly for tuning the air-fuel curve as RPM rises; the higher the RPM, the larger the affect the air correctors will have. So if you're getting real rich at the top-end, for instance, that's when you'd want a bigger AC jet. In other words, without an air-fuel ratio gauge, it's really anyone's guess what you need.

well question then. does an air fuel gauge hook up somewhat like an egt gauge on my diesel truck? drill and tap a hole in the exhaust. screw the sensor in and then hook it up? never installed one but it seems like it might be something to look into

Yeah, pretty much. If you can afford it, a "wideband" style air-fuel gauge is really the way to go. The Innovate LC-1 is cheap and will do what you need. The AEM UEGO is also a popular choice.