whats wrong with my carb?
I have a weber carb on my 88 258. The problem is I can't get it to lean out enough I don't think. I adjust the rich/lean screw out almost all the way and it doesn't appear to do anything. Also, I have to have the idle adjustment screw all the way down for it to idle good (1100 RPM). The stock carb was the same way, idle screw tightened almost all the way down to get a high enough idle. I had it backed out for a while, and then today it stalled so I turned it back up to about 1200 rpm. What else could be causing this idle problem?
Also, I get really poor gas mileage, like in the 13-14 range. What am I doing wrong?