You'll need to rephrase this question, as at the moment it doesn't make any sense!
Why would you want to skim the barrel (or a head) on an NSR, unless of course you want to turn SP heads into R heads? The NSR needs absolutely no more compression that it has as stock.
_________________
Andy.
NSR-WORLD.COM
Please keep all responses to Forum posts on the Forum so that others may benefit.
Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.
Check us out on Facebook! Please "like" our page!