It's a brand new "rebuilt" carb that I purchased from a race shop for my stock 350 w/headers. It's running rich, fouling out some of my plugs. I have an intermittent misfire (probably from the plugs) and it burns a massive amount of fuel. I know nothing of how to tune it, and I'd rather not tear into it without knowing what to look for. I've been reading that florida4x4 page all about the quad, but that's almost too much for me.