I have almost the same problem as "TR6 Hesitation." Hesitates/misses at lower reves on aceleration. I bothered me but was not a problem. Then last week it got worse. Then on the way home I was driving on a flat area and began to loose power. As I lost power I'd give it more gas. I was running pretty bad. I punched it and it ran OK, but when I came bach to cruise it was still losing power. I was about to send out an mayday. It was really looking bad and had to really slow down to make a turn. When I accelerated away from the corner it ran fine and ran fine for the next 8 miles home. I drove it to work the next day and though it ran OK it was not right. On the way home I thought to get a new set of plugs and changed them when I got home. By the plugs the front carb seems to be a little too lean so I richened it up a bit and toped up the dash pot. On the test run it ran great! But there still was a slight perception of uneven running at constant speed. I took it out on the same flat spot and it started to do the same thing but not as badly. I took my foot off the gas and let it coast. when I gave it the gas again the problem went away again. Tonight I am going to change the fuel pump. If that does not work then I'm going to install some Gross Jets on the carb floats. I need to get this ironed out because I want to take it on a 700 mile trip in a couple of weeks that will take me up to 6,000 feet and up to 100 degrees on cruising in the Eastern Oregon sagebrush. Always makes me feel like the RAF Huricane pilot in enemy teritory over North Africa.