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1fastmustang
01-07-2007, 05:18 PM
I know this is a little off topic in the Pro Data & Software forum, but I was wondering what MSD and the forum thinks about spark plug indexing? Is it worth the time, has anyone seen any type of HP gains, ect?

Thanks

Eric David Bru
01-07-2007, 08:00 PM
I recommend indexing for better clearance and flame spread.

msdtech22
01-10-2007, 03:04 PM
In all reality, short of you dealing with any clearance issues involved with the plug being hit and possibly have the gap close up on you, indexing the plugs is probably a non-issue.

Most people that spend the time and effort to index their plugs are racers looking for minimal horse power gains out of the engine.

Eric David Bru
01-10-2007, 03:06 PM
Agreed, I wouldn't waste my time on a street engine or any low compression setup.

But on a high compression engine, I always index the plugs.

EDB

1fastmustang
01-13-2007, 06:23 PM
Thanks for the info.

I run a heads up class so every little bit helps.

Thanks again.

msdtech22
01-15-2007, 09:51 AM
Not a problem, anytime we can help.