Crisjr14 Posted December 10, 2023 Report Share Posted December 10, 2023 Wanted to see if anyone can help me on these dual carter single barrel carbs so on the back one I have my vacum advance line as pointed out in picture attached but I just noticed the front one does not have anything coming out from that port question is do I buy a plug and block it off I did notice there is a hole in there so don't know if that will make it not run right with air escaping from there or is there a way to run a split vacum line or should I run just only one vacum from one carb and just plug up the other one thanks for any help Quote Link to comment Share on other sites More sharing options...
Sam Buchanan Posted December 10, 2023 Report Share Posted December 10, 2023 Plug the unused port. It is 1/8" NPT thread, same as a common pipe plug. Air won't escape from the open port, it will be drawn in by intake vacuum and create a lean run condition. 1 Quote Link to comment Share on other sites More sharing options...
Crisjr14 Posted December 10, 2023 Author Report Share Posted December 10, 2023 Thank you Sam going to get plug for it today maybe that's one of the reasons I could never get these dual carbs in sync and run correctly lol again thank you 1 Quote Link to comment Share on other sites More sharing options...
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