| Author |
Message |
    
robert h. covington
Member
Username: 60grit
Post Number: 4
Registered: 06-2009
| | Posted on Sunday, October 25, 2009 - 10:47 pm: | 
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finishing up a long block rebuild on a 318. What is the procedure to set up a 1409 edelbrock carb with a vacuum gage. Do you have to do the vacuum modification to the 1409? thanks for all your help this forum has been key!!! |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6990
Registered: 09-2003
| | Posted on Monday, October 26, 2009 - 06:29 am: |
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..."What is the procedure to set up a 1409 Edelbrock carb with a vacuum gage."
If you're talking about idle adjustment, then you need a vacuum source that is NOT in the PCV circuit.
The carb needs to be drilled and tapped for an 1/8" NPT fitting for the PCV hose (usually 3/8 ID). Use a 5/16 drill bit to make the from hole, then a smaller one up from the bottom to join the two holes. Then tap the from hole to 1/8 " NPT.
Jeff
   |
robert h. covington
Member
Username: 60grit
Post Number: 5
Registered: 06-2009
| | Posted on Tuesday, October 27, 2009 - 08:12 pm: |
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I have easy access to a vacuum port. do i adjust idle screw until i see the highest value on the vacuum gage? can i switch from rn12yc champion copper core plugs to rn14yc? |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 7023
Registered: 09-2003
| | Posted on Wednesday, October 28, 2009 - 02:14 am: |
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Yes. Be sure it'd warmed up and the choke is fully open.
Jeff |
