Need help on rebuild of a Holley list 7004-1 carb. I'm rebuilding this for a friend that recently purchased a 73 charger SE with this carb installed. The car sat in storage for years so we decided to freshen the carb. This carb was Holley's replacement for the thermoquad used on Mopars. The problem I see is that there was no anti syphon valve under the squirter. Every holley I have worked on had the valve.