RB25DET NEO with R33 Greddy manifold question

[drugsbunny666]

Im trying to fit a RB25DET s1 / s2 Greddy style manifold on a RB25DET NEO

The IAC doesnt fit at all, soo i bought one from a sentra 1.6 and it works fine with the manifold. bolts right up.

Now the fuel rail wont fit at all. So im planning to buy a R33 fuel rail. Now my question is will i have to get r33 injectors if i buy a r33 fuel rail ?? or will the NEO injectors fit the r33 fuel rail??

also will i need a tune once this is done?

Thanks