I mentioned part of this in another thread, but something else occurred to me when I brought it up. To start, I should mention that I'm not familiar with carbs... never had formal training for mechanics, just learned by necessity you know. I have a starting problem, got a high-torque starter and brand new battery last summer for it, but after two, three hours it will start for half a second, then die and refuse to start till you pump the pedal a perfect number of times. I mentioned it to a friend and he said there must be something wrong with the carb bowls. I already need to fix the choke (cold idle is 2500, warm idle is 600 and it stays on high idle way too long), so I have a Holley 650 cfm. Now comes the next problem. I'm driving and it starts to sputter at 3,600 RPM about a week ago. I thought I floated the valves, ignored it. Yesterday, it happened at 3,250 on my way out of town, then again several times on my way back as low at 2,800. Today it did it at 2,300 going uphill, but revived going downhill at went fine at 2,600 when I let off the gas a little. I'm guessing fuel pump does fine with flow but can't push out a lot of pressure? This all happened in fourth gear, I might add. Also in third gear when I tested it on a road outside my house. It only happens when I push hard on the gas. I can keep the pedal low and steady and get high RPMs without it happening.