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Spark Plug suggestion.
Posted: Wed Dec 03, 2008 10:47 am
by 71Runner
A search here yielded nothing, so I thought I'd post. I'm going to be changing plugs soon and was wondering what you guys are using. My engine is a '71 383. Heads are cut a bit to yield about 10:1 comp. 284*/.484 Purple Shaft cam. Dual plane intake, Holly 750 DP,Hooker Super Comps, 3k stall speed converter w/4:10 axle rear. Car usually driven a mixture of around town cruising with some highway use. What would you guys suggest. I don't recall whats in the car now, but probably Autolites. Thanks.
Re: Spark Plug suggestion.
Posted: Fri Dec 05, 2008 9:55 pm
by landon1
I've used autolites, but normally i just get champions.....hoping to try out the accel shorty plugs when it gets time to change, though

lots of guys use NGK
Re: Spark Plug suggestion.
Posted: Sat Dec 06, 2008 1:32 am
by 71Runner
Thanks Landon, what plug numbers would I be looking for as far as heat range goes?
Re: Spark Plug suggestion.
Posted: Sat Dec 06, 2008 10:02 am
by 1bluegtx
I use Accel 134, works good with a double pumper.
BRIAN
Re: Spark Plug suggestion.
Posted: Sun Dec 07, 2008 8:02 pm
by 71Runner
OK,
Thanks Brian.