E85 Spark plugs

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Hoophoop

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What are the best spark plugs for running E85 fuel 416 stroker, naturally aspirated, digital 6al ignition, and rpm performer Edelbrock heads? With 11.8:1 compression
 
After googling plugs....I found most people use either the 7s or 8s...the gap is tighter.... .025to .030..so I picked .030,,,,ignition is msd 6 and 7...one car has 7al-2...one just got a 71-3...and I still got the 6al....and that one will be upgraded also..but with something different....this weekend will be the first time we have run the tighter gap...
 
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