Stock six pack center carb idle restriction ?

[cj's mopar]

Does anyone know what the actual size of the Idle restrictions are on a 69 sixpack carb that Holley is offering as replacement for the originals?
Also what is the PVCR size ?
This info seems to be very hard to come by.
But is very important to most when properly tuning a Six pack .
Let me go on a limb and say
Changing just the main jet is not enough for best tune .

 

[lewtot184]

The center carb I have had .023" idle jet and .062" idle air bleed; big mismatch. Power valve channel restriction was stock. Jets won't cure the idle problem.

 

[cj's mopar]

But what is the the size of the stock hole that is the question please.

 

[lewtot184]

I told you what the restriction size is for a center carb. End carbs use a .036" idle jet and .031" idle air bleed.

 

[lewtot184]

This picture shows the idle jet (idle feed restriction, low speed jet, whatever you want to call them); the small brass tubes.

 

[cj's mopar]

PVCR is .046 thanks and .52?
Was that stock or someone open up ?

 

[lewtot184]

PVCR is .046 thanks and .52?
Was that stock or someone open up ?

Stock