Not sure what the pipes are they look like early ethos pipes they made a huge difference.Will be ordering some Tygas in a couple of weeks time.This is my first race season on the NSR just got out there and raced to start with have done some work on the forks and replaced the rear suspension .But the bike was going well but one of the guys here has a super trick Aprilia rs 250 it is way quick and he leaves me for dead on the straights.So i need some more ponies.I have not set the squish on this bike yet but what you say is spot on I just need to go out and set it up.The VHM heads are i belive set for .8 set up.They are very similar to the rs heads and come in two parts they look like they will do the job and have center plug placement.
As we speak i have just piked up some large blocks of polystyrene.These are to make a large volume air box.Just get the shape i want then wrap with fiber glass and dissolve the inner.The carbs wll sit inside this airbox.
At the moment am using the tyga blocks with spacers and stuffers this NSR has bags of over rev also using a lightened flywheel hrc head conversion and jet kit with premix bike goes well just not as well as the guys in front of me and its not the corners they just power away and me on full throttle just left for dead.But i am working on it.