Jag! It's like a reunion!
Fcrs are king. But they don't fit nice.What did you you do throttle cable wise? What was your final jetting?
I wanted easy going install on this bike due to limited time piasing around, with the tm38s kit as it was supposed to be plug and play but they were not.
If you look at my build page you can see I made 2 aluminum manifolds also used cam tensioners from a newer virago for clearance still a pretty tight fit.
For my throttle cables I used the pull FCR cable from the throttle to the first carb and then used a cable from push side of the first carb to pull the second carburetor I had to put new ends on the cables, little tricky getting them to work together but it all worked in the end.
Here is my current jetting, both FCR's came of an 06 RMZ450 may still be slightly rich, but runs pretty damn good.
main-148
pilot-40
leak jet -70
needle-EMF (clip #3 position)
mixture screw-2 turns