msd 6al up grade
Planning on going to a new msd box, have used the 6al for a few years,a super stock car , high compression and high rpm . planning on a 7al-3. or 7al-2 .Any good or bad comments on these boxes. the black one is there latest and superceeds the red , Most companies have all 3 7al's for sale . Thanks for your thoughts. Bob
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