I have flooded mine a few times and it wouldnt start I would pull the glow plug out and tip the car to the exhauste side and shake any exscess fuel out of the pipe then pull it over a bunch of times. Then before you put your glow plug in check and make sure it glows bright orange and will keep glowing (I had a dead glow ignighter once and I thougt it was ok because it glowed but I only tested for a half a second) then once you put the glow plug in check compression and make sure it seems good enough. I have herd one guy say to lift your car a few inches off the floor or bench and hold the pull cord and let go of the rest and see how fast the car drops but make sure the car hits the ground or bench before the end of the pull cord. then after all that if you still cant start it try to prime it by pouring a little fuel in the carb to see if it is a fuel problem ( I had lots of fuel problems including the manifold not sealing to the engine!).