My truck starts fine and once it is warmed up purrs great for about 30 seconds and then has a little hiccup, then runs good again, then the hiccup and so on. It will run great at about 45-55, never drive faster than that, but while driving it at slower speeds like 30 it has a constant miss. Just sputters away. I can put it in 2nd and let it idle down the road it just sputters and wants to buck on me. There is also has a hesitation when I take off from a dead stop. While at a light it purrs with no hiccups. Any help on where to start would be great. The engine has about 500 miles on the rebuild and everything is pretty much new, dizzy, coil, points, plugs, wires, carb, intake , etc. I did a search but couldn't find anything that may help. Thanks.
