Hi,
The timing belt is the same wether neo head or not. I can't remember the part number at the moment.
The oil restrictors in the rb30 block are 2mm and 2 of them, in the neo they are 1.5 and 2 of them.
Calculating the surface area of a 2mm diameter is 3.14mm2
a 1.5 diameter is 1.76, and there is 2 so neo has 3.5mm2 of oil feed.
Blocking off one in the rb30 block means approx 10% less flow than on a stock neo to the head.
As my car is a daily, and only going to the drags and sometimes hillclimbs, I didnt see the need to reduce it more than this. (slso just blocking off a gallery is the easy option.)
You could look at what restrictors guys run on rb26 or other neos and decide if you want to go smaller.
I had the vct gallery welde up, some people plug it with a screw, but I wanted to ensure no chance of leaks. At the same time I got a section welded onto where I drilled and tapped for the external vct feed to provide more material to tap into.
Tee piece oil feed to vct from the pressure sensor, which is 1/8 bsp. Some pople have meentioned npt in the past which I garantee is wrong, they are very similar and screw together partially, but 1/8 BSP is what is used.
The spot specified to tap the block for the tensioner n the PDF is not correct and means the belt would be super tight (might be why guys use two tensioners). I put the belt on, and held the tensioner in place at its loosest setting and spotted that onto the block, and then drilled and tapped it. Using two tensioners is odd to me, but does give you some ability to dial in the cams, but i would rather just get a vernier cam gear for the exhaust and the neo inlet vct gear is adjustable anyway, you will notice this when you have it off.