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Originally Posted by jonszr1
pete i have a set of those e3s in my black car.getting about 1.5 mpg better on a steady cruize. i ahve 1 150 stretch that i just put it on cruize . if i am getting better fuel milage ,plugs only diff wcould that transfer into a little more power. are those acs colder than the ngk? thanx for any insight
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I think it might be more efficient at the rpm you set your cruise at,it does not mean you make more power at peak.
I don't think there is much power if any to be seen on the dyno from our LT5's from just spark plugs.
I'm always willing to hear peoples results.
My Z will be going on the Dyno in a few days i'll try this on the dyno if some one can tell me which plugs are best for more power NGK or Denso.
Pete