What Spark plugs 430+ bhp with msd waisted spark
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with 430+...... IK31
its a colder plug - more safe at that power levels
http://shop.motorsport-developments....of-4-693-p.asp
its a colder plug - more safe at that power levels
http://shop.motorsport-developments....of-4-693-p.asp
Last edited by Heitmann; 11-01-2017 at 05:00 AM.
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#12
The best plugs I have found are the Autolite Racing AR3932 and AR3932X.
I have a Stage 3 Running 21psi and have tried 071's NGK Denso Champion etc. all of which burn up or need regapping frequently. Then I found that the Autolite Racing AR3932-AR3935 (heat range - cold to hot) are identical spec to the 071's due to the fact Ford used to own Autolite. The AR3932 etc. are much better made with a solid tip (no more pulling it off with the boot), and nickel coated, so easy on our aluminum heads. The ones I like the best, having run them for 2 yrs with no issue are the AR3932X NASCAR plugs, available on eBay for about $5 a plug. They have 4 ground points and the gap never changes. Highley recommend them!
- Karma Cossie
I have a Stage 3 Running 21psi and have tried 071's NGK Denso Champion etc. all of which burn up or need regapping frequently. Then I found that the Autolite Racing AR3932-AR3935 (heat range - cold to hot) are identical spec to the 071's due to the fact Ford used to own Autolite. The AR3932 etc. are much better made with a solid tip (no more pulling it off with the boot), and nickel coated, so easy on our aluminum heads. The ones I like the best, having run them for 2 yrs with no issue are the AR3932X NASCAR plugs, available on eBay for about $5 a plug. They have 4 ground points and the gap never changes. Highley recommend them!
- Karma Cossie
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Lambchop
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11-12-2005 10:53 AM