I wouldn't think so but maybe. It would stand to reason there would be a little more spark transfer but I don't know. I got them not for the larger size but because they were $20 a set (compared to the usual $100). I doubt i'll gain anything but i'm sure it won't hurt performance.
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66 Tahoe Turquoise Coupe
Laser Red 96GT Ragtop
30 Years & 30 inches apart in the driveway!