Oh! That's pretty sweet. Have you ever looked at air temps up/down of the exchanger? I have an intercooler on my SC'd Tacoma and I've just never drilled/tapped the intake for the temps. However, there are other folks that have and it makes a nice difference.
To be fair, I’ve had it for months and still haven’t installed it. I’ve gone round and round on what exactly I want back there besides my WeBoost. So many projects for one vehicle.
Try this for the head: Cylinder Head for 1998 - 2002 Toyota LAND CRUISER FZJ105 | General sales region, , 18029524-937001 - https://www.megazip.net/zapchasti-dlya-avtomobilej/toyota/land-cruiser-38286/fzj105-57063/fzj105r-gnpnkq-937001/cylinder-head-18029524
And the intake: Manifold for 1998...