Whats raising pb to 7k

[stuboy]

Whats raising my power band start point to 7k is it my stage one barrels or my Microns ? was the pb on a standard 350 Elsie from 6-8K ? Does a tune just raise the power band or raise and reduce the size of it ?

[Norbo]

most likely a combination of the 2. microns do do this on most bikes but the tune is likely to helping it along .