MSD 6420 6AL
12-15-2012, 09:29 AM
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CRAFTSMAN
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Join Date: Nov 2005
Posts: 58
MSD 6420 6AL
I have a 6420 box now and was wondering if the 6425 box would be a good upgrade,have no issues on mine.
12-15-2012, 04:16 PM
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RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
Why :?: The 6420 will run anything you have with an added 2 or 3 step. I've run the 6420 on blown alcohol engines and have 2 of them. I also have a 7AL sitting on the shelf which i don't use, because i don't find it necessary.
JMO
Zip.
12-15-2012, 08:57 PM
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CRAFTSMAN
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Join Date: Nov 2005
Posts: 58
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