Hello all, I'm a recently new member to this forum. I'm having trouble with my '41 Linc Cont and thought I would poll the experts. I recently decided to get our lincoln running after it had sat for 6 or so years, before then it probably sat for 7 or so years. Everything is "working", but i do have a leaking rear main seal. Other than that, everything is surprisingly functioning as it should with one exception. I rebuilt the carb, and adjusted the idle screws with a vacuum gauge. I believe it was somewhere around 18" at idle on the gauge (measuring manifold vacuum). Everthing runs smooth under no load. Acceleration is good through all three gears. When i start cruising at a constant speed, the carb seems to become flooded. I start loosing power, the car never shuts down though. It's almost as if i loose several cylinders. If i clutch and rev the engine a few times and let it idle for a second, it will act as if nothing happen and can handle a constant load for a little longer. Then it starts the same thing over. It will backfire if i don't cycle the carb with fuel and let idle for a few seconds. What could this be? Do i have my float adjustment off? I've pulled this carb apart more times than I can count. I've checked the main jets, and they are #54 with a 7.5" power valve (correct for the carb). I've also checked to see if my power valve is faulty by checking for condensate (suggested in previous posts). I can't see that i have anything else wrong. I haven't specifically checked for a vacuum leak, but i think i would see a vacuum leak at idle before a constant load. Any thoughts?