If you look at the lower clutch side cover, you will see a part sticking out towards the front that is flat along the bottom and has a plug pressed into it. That is the oil line near the oil pump. You have to drill 3 holes and tap for 2 fittings for the supply and return and one threaded plug to divide that oil passageway in 2. I have a picture in a thread of it somewhere on here and it gives the drill size, the tap size and the shows where to drill.
Nicholson 500x (Project)
Nicholson 185s
Nicholson 110 (That takes an atc70 tank)
Ascott 500 head/350x (Project)
Homebuilt Racer Chromoly Suspension 110 (Ragin Runt)
PK Racing Suspension 70
A+ Inc Suspension 70
AWS Aluminum 90 frame
Hi Performance ATC Suspension frame rd350
Hi Performance ATC Suspension frame 90