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#2
06-10-2009, 01:29 AM
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Re: AC Delco Spark Plug
I am running the NGK's in the Z/28. Seems to be doing fine. Don't seem to have anymore power/RPM range than the R44S's that I took out. May be faster on the track because you can't always feel a couple tenths but I don't seem to get more out of the NGK's (longevity) than I do the AC's.
 
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#3
06-10-2009, 03:05 AM
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Re: AC Delco Spark Plug
Years ago I found that NGKs seemed to work better than anything else in our two stroke snowmobiles. No complaints at all there. They would probably work very well in the 396 as well. It's just that, so far, I've had a good supply of AC plugs. I just might go out and get a set. Nothing like having a car running better.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now. 
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