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Discussion Starter #1
I have a 306 with edelbrock performer heads what should i gap my plugs at? Also i pulled one of my plugs and it looks kinda white what does that mean to rich or to lean?
 

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to white means lean
black or suity is rich
should just have a touch of brown look to it if mixture is right.
 

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what gap are the ones in your car at, i gap at .054 but im all stock. anyway if yours are less then that you can open it up some more and thatll help richen it some to
 

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Discussion Starter #7
34 is stock right?
 

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k my manual and ford says gap from .052 to .054 for stock applications
 

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I have a 306 with edelbrock performer heads what should i gap my plugs at? Also i pulled one of my plugs and it looks kinda white what does that mean to rich or to lean?
A perfect running engines plugs should be a nice chocolate brown color.
 

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EFI motor plugs alway look white if you pull them after you putted around town or after the car has been idling.

They run like 15:1 at idle, which = white plug.

If you want to know what your car is doing at WOT, do a WOT pass, kill the engine, and check the plugs directly after the pass. Not after the return road, but immediately after the WOT pass.
 
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