[skillet]

There was an article in Car Craft of Sept. 2001 about rebuilding a quadra-jet. The guy that did it worked for Jet Performance Fuel Systems in Huntington Beach, CA. jetchip.com. I e-mailed them and asked what they used to seal the casting plugs and they said Devcon, 5 min. 2 part epoxy. I don't know if they use it because it's better than JB Weld or because it's faster for them. I used it on my carb back then, but have'nt taken it apart since to see how it's holding up. My mileage did increase 1 mpg. Never thought of Silflos, just assumed it would melt the carb. Silflos sounds like a better solution, I'll have to try it next time.