Best spark plug for my combo

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81camaro
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Best spark plug for my combo

Post by 81camaro » Mon Oct 09, 2017 9:30 pm

383 sbc srp dome pistons 12.5.1 dart sportsman 2 heads I’m using ac delco R42ts now. Just looking to optimize my combo. I’m also running VP- c12 gas.

ProPower engines
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Re: Best spark plug for my combo

Post by ProPower engines » Mon Oct 09, 2017 10:39 pm

That plug may still be too hot for that amount of compression and iron heads.
I use an auto light racing plug AR-133 or AR 134
Real Race Cars Don't Have Doors

81camaro
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Re: Best spark plug for my combo

Post by 81camaro » Tue Oct 10, 2017 6:55 am

Is your combination the same??

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