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-   Engine Tech (https://www.racingjunk.com/forums/forumdisplay.php?f=9)
-   -   PLUG GAP (https://www.racingjunk.com/forums/showthread.php?t=28700)

cncmotorsports 08-27-2010 11:19 AM
What heads are you using ?

JEFF69Z28 08-28-2010 02:37 AM
Originally Posted by cncmotorsports
What heads are you using ?
AFR 210 FULLY RACE PORTED BY AFR

cncmotorsports 08-31-2010 06:34 AM
Originally Posted by JEFF69Z28
Originally Posted by cncmotorsports
What heads are you using ?
AFR 210 FULLY RACE PORTED BY AFR
Use NGK5671A-8

Gap to .040

rich970 09-13-2010 03:11 AM
what plugs for indy 440-1 with 15 to 1 comp. could i use ngk R5672A - 9 OR 10 or stay with the R5672A- 9 or 10 thanks Rich

cncmotorsports 09-21-2010 02:52 PM
Originally Posted by rich970
what plugs for indy 440-1 with 15 to 1 comp. could i use ngk R5672A - 9 OR 10 or stay with the R5672A- 9 or 10 thanks Rich
Try the -9 and see how they work, if they fowl out easy, go to the -8
I'm not familiar with the indy heads as for what reach plug they take.


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