Retired Test Pilot.
Join Date: Mar 2008
Location: Back to Colorado
Motorcycle: 98 SRAD 7 / 10ish Project
Re: gsxr inlet rubbers
A 1216 can make a great street / strip motor, you have cams already a little massaging of the head and it would fly and a set of 39's would feed it well.
A 1340 with all the supporting mods is going to want more, I would def go with 41's on it, it's street manners can be touchy tho with heat being the biggest enemy.
granted you will have heat for an enemy in anything you do to it and even now being stock, the best thing I can suggest is to step back and ask yourself what kind of riding your going to do with it and then build according to that.
No Replacement For Displacement
And No I Do Not Give A Shit What You Think About Me.