OK now no-one laugh at me, because alot of hours of testing went in to this. Just for the hell of it, those of you that have the black or silver AB67-80 pipes throw them on your K-90 or CMB 90,91,or 101's. I have honestly tested probly every pipe out there on these type motors (well the CMB's anyways). The reason why they work better, hell I don't know except for maybe the smaller pipe volume at my higher altitude (4800 ft). But those of you who have these pipes, try it and reply back to me or this thread. I want to know if this works for anyone else of if it is just great luck on my behalf.
Sorry on the behalf of the starter of this topic I am going to move this to it's own topic.
Thanks,
Cliff
