Hindenzerg1266 Posted May 15, 2021 Share Posted May 15, 2021 Good evening all, I got some beautiful carbs from ZTherapy around the middle of last year, and I'm having a hard time getting my idle down. I know that carbs are supposed to be the last thing that you tune, but how do I set the ignition timing is right when I can't get the idle under 2500 RPM? Looking for some advice. Here is some other info/things I've done so far: Checked for vacuum leaks with carb cleaner just about every time I turn the car on to warm up Replaced PCV valve Head is rebuilt, had to shave it down a little bit due to a blown head gasket from the previous owner Checked valve lash with feeler gauges (cold set and then hot check) Checked Head Bolt torque to ensure that's not an issue Dry compression test, all cylinders between 135 and 140 except #6 which was about 130 Will do a wet compression test tomorrow What would your next steps be? Thanks! Link to comment Share on other sites More sharing options...
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