My neighbor races a 434 fox body mustang and has developed a carb issue. He had the same guy that rebuilt it before go thru it again but he won't be available till Monday.
The problem is, it won't draw enough fuel to idle well at a idle. I went over and checked the fuel levels and raised the front bowl ever so slightly. The 4 corner mixture screws change nothing when adjusted in. But If I put my hand over the primaries when it is running, I can get it to idle. So I know it is a lean run issue. Can't find a vacuum leak at least externally. Any Ideas?
