do a quick search on K20a bud. For the most part all stage 2 cams will net around the same, just need find some the power band your looking for. Im sure there are some graphs floating around the forums through. GL.
Something to think about BP is no longer in business, IIRC so customer service is null and void.
Something to think about BP is no longer in business, IIRC so customer service is null and void.