A hybrid L-Z is nice engine. The factory LZ20B was L-series bottom end and DOHC head (LZ engine).

So basically making a 2-liter version of the Z18ET

* T3 flange (TD03) is 3.40" x 1.75". Pick one of the smaller Garretts?
* With intercooler and E85 petrol you could do 20 psi boost
* The red SR20DE injectors are good for 175 hp, the purple SR20DET injectors for 250 hp, brown for 300 hp
* You can exceed 7000 rpm in a stock 120Y, for example wrong shift. But with a Z18ET head, it won't normally unless you upgrade the valve springs. Really no need to rev over 7000 with the stock Z18ET head.