plugs

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02-15-2005, 12:14 PM

Paul306

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Join Date: Feb 2005

Posts: 5

plugs

Guys,
I have a 306 with Holley heads, Holley Intake, Lunati Cam, and bolt-ons. Holley heads require a 3/4" reach. The question is what spark plug should I go with? I drive it daily.

02-15-2005, 01:01 PM

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RE: plugs

hang on....

02-15-2005, 01:05 PM

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RE: plugs

ok champion RC12YC or ,,autolite 3926,,or ,, motorcraft ASGP52 hope this helps you ...

02-15-2005, 02:05 PM

Paul306

Thread Starter

Join Date: Feb 2005

Posts: 5

RE: plugs

with a stock motor, most people recommend autolite 24 plugs. besides the reach, what's the difference temperature wise? My motor compression should be 10.5 or 11. Haven't confirmed it yet. Shouldn't I run a colder plug?
Also, Holley heads call for a plug with a flat seat. Are the plugs you recommended compatible?
Thanks,

Paul

02-15-2005, 02:16 PM

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RE: plugs

thoses plug are for my victor jrs head they have flat seat on them i contacted edalbrock ...look uo holley web site ..go to contac them sent then a e mail im running champions but # 9 cause i got 200 shot onit...