Lately I've been noticing a hesitation if I try to take off with a little speed. If I ease on the throttle and accelerate slowly everything works fine. If I give any more than about 1/4 throttle I get a hesitation, nothing too terrible but enough to be annoying. I've checked the timing, its at 12* initial (where I left it last). I moved the vacuum advance from timed to full to see if it had any effect on the hesitation, and it didn't. I tried moving the accelerator pump stroke to the upper hole to see if it affected the hesitation, and it didn't either. I'm getting 18" of vacuum like I always have. I messed with the fuel pressure, nothing changed. The problem tends to get worse as the car warms up. I've been noticing gummy looking stuff around the top gasket of my carb though, so I'm wondering if its going bad. Its only 3 years old, but its been sitting a lot lately. Any other ideas?