Holley Clear Float Level Plugs

To prevent the chance of fire due to spilled fuel I use them then immediately after take them out when I have it set and put the brass plugs back in. One time I had one freeze up in the fuel bowl even though I had just put it in and it went in with ease. Broke the dang thing off trying to get it out so I had to pull the fuel bowl to drill it out. From then on I put a small amount of grease on the threads so they don't stick.