Anyone know any good plug reading sites or pictures ? - 460 Ford Forum
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post #1 of 4 (permalink) Old 09-20-2010, 02:30 PM Thread Starter
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Anyone know any good plug reading sites or pictures ?

hey guys i have a wb installed and been tuning a little but wanting to see if anyone knows the true way to read a plug i know most do it wide open then shut it off but what should they look like idleing even at 14.1:1 mine are still sooty !

1991 lx coupe sleeper "in progress", 460 d9te short block,c8ve heads ported stock valves,Ford Racing a443 cam,Torker 2 intake port matched,Holley 850dp "tricked,roller rockers,c6 rebuilt,2600 stall ,355 gears,hooker super comps,3" x pipe,26" drag radials,disc 8.8 rear,adj uppers
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post #2 of 4 (permalink) Old 09-20-2010, 03:59 PM
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I hope this helps.

http://www.4secondsflat.com/Spark_plug_reading.html

557" A460 p51's 8.60 @ 162
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post #3 of 4 (permalink) Old 09-20-2010, 04:07 PM Thread Starter
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Originally Posted by hienergy557 View Post
thanks, i have seen that website and it does make sense, but there is no mention of how the plugs should look at idle before a wideopen pass ? still trying to learn what should be right !

1991 lx coupe sleeper "in progress", 460 d9te short block,c8ve heads ported stock valves,Ford Racing a443 cam,Torker 2 intake port matched,Holley 850dp "tricked,roller rockers,c6 rebuilt,2600 stall ,355 gears,hooker super comps,3" x pipe,26" drag radials,disc 8.8 rear,adj uppers
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post #4 of 4 (permalink) Old 09-21-2010, 12:11 PM
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Quote:
Originally Posted by 89lxcoupe View Post
thanks, i have seen that website and it does make sense, but there is no mention of how the plugs should look at idle before a wideopen pass ? still trying to learn what should be right !
Found this further in the article:
Top Area: This area is your idle circuit and for the racer real has very little meaning. However if your car is a street driven vehicle then we need to attempt to get this portion to a dark gray/tan color by tuning the AFR with the Air Bleeds and the four corner Idle adjustments until we get a clean crisp idle and total combustion of the fuel at idle. Keep in mind that the idle circuits are totally isolated from the rest of the carburetor and can be tuned with very minimal affect on the WOT position A/F Ratio.

Hope this help you.
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