Edlebrock Heads

Like Lancester said..I use cotton rope. I've used it a lot in the past, and never had a problem. I have heard of it getting stuck, but I dont recall ever having that problem. I've had engines back up with shop air, and once the piston is at the bottom, and you open the valve a bit, it can fall. It just makes me nervous enough that I try not to use air if possible. The biggest issue I've had is the large double springs can be difficult to compress with the hand cranky types. The teeth on the fingers arent long enough to grab inner and outer, unless you're careful.