[goodyear1984]

well i wouldnt blame it on the ign system cuz it will work in the driveway.i wouldnt blame it on the carb being to big because that would be more of a problem in the lower rpm rather then the higher rpm and as far as accelorator pump that would be a problem with throttle response because it only pumps fuel when you press down on the gas and doesnt do anything if your just wide open in a gear.now it does sound like its running outta fuel by the way u explaned other then the missing it would have to be pretty lean to miss.i would go thu the bassics and check your float levels make sure theres no vaccum leaks.one thing you can do is get a vaccum gauge and plug it into manifold vaccum, tape the gauge to the windsheild and see where the vaccum level is when its breaking up that will tell you if its running lean or rich