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-7 plug

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Old 03-08-2015, 11:48 AM
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Ok, got my carb coming Tuesday. He recommends a-7 plug. Can someone tell me what plug is a -7. I never have cared for ngk, might be different inn E85. Mark Sullens likes hot plugs for his carbs, he has forgot more than I know about running it. So I'm gonna listen to the man. Thanks guys.
Old 03-09-2015, 11:40 AM
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nobody?
Old 03-09-2015, 07:17 PM
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????
Amazon.com: NGK (4091) R5671A-7 Racing Spark Plug, Pack of 1: Automotive Amazon.com: NGK (4091) R5671A-7 Racing Spark Plug, Pack of 1: Automotive
??????
Old 03-09-2015, 08:07 PM
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For E85 I'm sure a hotter plug helps. I run a BR7 for nitrous, I would imagine a TR5 for all motor E85 would be good.
Old 03-09-2015, 10:48 PM
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I may have to get with Mark Sullens. He says start with a -7 and go from there. He says he wants a hotter plug than you run on gas. I think mine are autolite 604s on gas.
Old 03-10-2015, 04:34 AM
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Old 03-10-2015, 08:15 AM
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I talked to Mark, he said a tr5 would work, but its a resistor plug. He said a non resistor plug would be better for a drag car. Now if I can cross a tr5 over to a non resistor plug.
Old 03-10-2015, 03:11 PM
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http://www.dragstuff.com/techarticle...reference.html



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