Best spark plug for my combo
Moderator: Team
Best spark plug for my combo
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.
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Re: Best spark plug for my combo
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
I use an auto light racing plug AR-133 or AR 134
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