First: I would like to apologize. Searching through the forums I have seen a number of these threads, but haven't really found my answer. My setup: 1970 IH Scout 800A 4x4 IH 392 V8 Edelbrock 1406 carb (new) Pertronix Ignitor II (new) w/ Ignitor coil Also new: fuel system (pump, lines, filter, switcher, and tank), valve cover gaskets, thermostat, battery, spark plugs (Autolite 85s), etc... I am trying to get my Scout road worthy. Sadly, when trying to adjust my idle screw on my carb I noticed that the car doesn't really like to run under 1000RPM warm, 1200 cold. Anything less and it begins to sputter and eventually die. When running the throttle seems responsive and the engine roars pretty well. Didn't seem to have any problems driving (though I've never taken it out of first...). It probably needs an oil change, but I can't imagine that being the problem. Searching through the forums, I have found the following possiiblites: Vacuum leak: Most of the vacuum hoses are new. People seem to recommend pulling off hoses but I can't really say which I should/ should not pull and where to test. Total newb. I did just replace the valve cover gaskets, and while I have been REALLY conservative with tightening those, I think they are tight enough (but not too tight). I used a rubber seal w/o any gasket epoxy or that sort of thing. Running to rich/ lean: This is actually my primary guess for the moment. The exhaust smells "gassy" to me, even when the engine is at temp. My understanding is the Edelbrock carbs don't need adjustment out of the box though. Furthermore I have literally no idea how to adjust this. (Always willing to learn!) The manual that came with it isn't super helpful, but it is possible I don't know what I am looking for. Not enough fuel: Brand new pump (Carter M6959). You can view the fuel flowing through the filter and it does seem not great. I don't really know what that is supposed to look like though. Is it possible the 1406 is just too thirsty for the pump? I could post a video later if that would help?