Plugs for a 250 shot?

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06-10-2016, 11:32 AM

94FBIRD

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Plugs for a 250 shot?

I've been running an NGK 6 for the 150 shot. I'm thinking a 7 or 8 for a 250. Using 104 in the tank and 112 in the stand-alone. I will pull 12 degrees of timing, also. Thanks!

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06-10-2016, 12:15 PM

Nitro Dave's Nitrous Outlet

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What are the specs on the motor? Compression? This info will help me choose the correct plug for you.

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06-10-2016, 03:28 PM

94FBIRD

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383 LT1 with a 12.48 CR, but I am at 5,000 feet, so a lot less cylinder pressure. It's in 3,850 pound( with driver) Formula A4.

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06-10-2016, 04:52 PM

Nitro Dave's Nitrous Outlet

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for a gasket seat plug you will need R5671A-8 and for a tapered seat you will need a B8efs -Matt

Last edited by Nitro Dave's Nitrous Outlet; 06-13-2016 at 09:51 AM.

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06-11-2016, 10:59 PM

94FBIRD

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THANKS! I'll use the B8efs then.

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