Stock heat range or one range colder for bolt on e85 car?

[BPatterson]

I have NGK 6510's in the car now, but am thinking about going back to the stock heat range. Opinions?

 

[nosscort]

wont see any difference. tried the same at rev auto on the dyno and saw no difference in power or in the logs between the two, so i left the 6510's in my car gapped at .032 because of N20 kit going on.

 

[BPatterson]

Exactly what I wanted to hear. Thanks.