LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Spark plug gap with 6AL BOX...?

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Old Apr 21, 2009 | 02:54 PM
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Default Spark plug gap with 6AL BOX...?

I know stock plug gap is 0.050 but what do you think I should change it to with my MSD Blaster Coil, MSD 6AL Box and 8mm Taylor wires...?

No nitrous... Cam only..
Thanks
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Old Apr 21, 2009 | 03:15 PM
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.050 is relatively huge already no point in going larger.

The ignition goodies are at best a waste of effort though unless you get a spark based rev limit or the like from them. Especially the 96-7 system is plenty strong in stock form and some folks report ignition boxes are rough on the opti.
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Old Apr 21, 2009 | 06:25 PM
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Originally Posted by 96capricemgr
The ignition goodies are at best a waste of effort though unless you get a spark based rev limit or the like from them. Especially the 96-7 system is plenty strong in stock form and some folks report ignition boxes are rough on the opti.
+1, why do you think you need a 6AL?
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Old Apr 21, 2009 | 09:34 PM
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Because I got the MSD Box for free and the Blaster coil for $15 and didnt see how this could hurt...

So should I leave the gap at 0.050?
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Old Apr 21, 2009 | 09:58 PM
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may go down to .45 or .35
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Old Apr 21, 2009 | 11:27 PM
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i know a few that went to .050 on a stock motor cam only but i dont see y tell you the truth it isnt all that great to have the 6al the stock ignition system is bad *** but anything less than .050 i wouldnt do
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Old Apr 21, 2009 | 11:57 PM
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i am going to run .035 to .040. From what i have heard, .050 was aminly for emissions purposes, and is already somewhat of a large gap even for a stock car.
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Old Apr 22, 2009 | 09:40 AM
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The ignition box is a waste of money unless your using it for 2 step rev limit..and from my personal experience it has hurt my opti so I don't recommend it. If you have stock compression and no nitrous then there's no point in changing the spark plug gap. The coil I thought was a good upgrade until mines burned out after 3k miles.
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