Rochester 1958 carb rebuilt last summer ran fine, ran fine this summer.Got on high way for 50 miles drove fine at difrent speeds,got off high way died out at idal.The idal was very low picked up idal to normal runs fine.What is the cause of my low idal problem, it ran that way for a year no problem.Any ideas what is going on.Thanks

Last edited by oldchevyguy; 05/17/2013 8:39 PM.