1966 Plymouth Valiant /6 & Holley 1945 carb can only get to idle at 1250rpm. How to get a lower idle without dying?

junkyardhero said
you replace this vacuum cap, it looks a little sus.

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what's the chrome capped breather attached to?

lets see a wide angle of what you got cookin. might be something obvious that's just hooked up wrong. pull the air cleaner so we can get a good look at the carb too.

I dunno. I’ll reference factory manuals when I get home. I replaced the sus vacuum cap and it made no difference. The vacuum line from the distributor to the carb is fine, no cracking or anything. Still need to replace the one from the big red cap to the air cleaner though. Nobody has 1-1/4” line.