Not sure what you mean by "blueprinting". Most engine builders "blueprint" by making each and every cylinder/valve/spring/port specs match as close as possible so the engine runs at a better state of tune. Not easy on an NSR, when the intake tracts are entirely different on each cyiinder of an NSR.

Here are some things you can do internally:
-weld the pins on the crank
-port/epoxy the cases
-gasket-match the cylinders to the cases
-map the ports, clean them up, and open the exhaust port closer to RS specs (best bang for your buck!)
-run the .5mm base gasket on the upper cylinder, .6mm on lower cylinder

Do all that and run all the Tyga bits, and you wont get a much better NSR unless you go overbore.
_________________
Paul Herr
'88 FZR4/GSXR/YZF Frankenbike
MY BIKE PICS