Bewy said

You don't mess with air bleeds!!!!!!!!!!!!!! The carb has TWO ccts: idle & main cct. The idle air bleed is calibrated to 'finish' where the main air bleed starts fuel flowing for the main cct. You adjust by changing fuel, not air.
The PCV
You had 'initial success'. Does that mean it DID idle ok, now it doesn't?? That could be adjustment of ign timing/carb or wiped cam lobes. The PCV will not work with low vac cams. If you can feel it vibrating at idle, in gear, it is not working. Need more info. Ign timing has a BIG impact on idle quality. You get the idle timing correct first, before touching the carb. Below are some examples of what the correct idle timing can do....

View attachment 1716475611

View attachment 1716475612

View attachment 1716475613

View attachment 1716475614

View attachment 1716475615

View attachment 1716475616

View attachment 1716475618

Click to expand...

340inabbody said

Guys thank you for all this information. It’s going to take some time to carefully read and understand all this and comment and reply.

I did have the T slots set correctly with the idle screw AND I used the secondary to provide some additional idle speed. But using the secondary is very sensitive. I also installed a wbO2 sensor.

Unless I missed something, I didn’t see any direct reply to my question regarding if tuning the carb by drilling the butterfly’s could improve the idle disparity from in gear and out of gear. Can you guys comment on this please?

Click to expand...