A short note on my detonation issue, when I was assembling mine I had the wrong timing blade, Part # was correct but Mitsu sent the wrong one to my dealer. I indexed one but did have the timing advanced to much. Yesterday I installed the proper one that my dealer got for me. I am going through some other maintenance and cleanups while the truck is in the shop.
I will drive it tomorrow so an update after that.

Cheers, Charlie
If It ain't broke, Modify it!
87 Montero turbo Converted back in Spring1989
95 Montero SR 3.8 DOHC Only one?
93 Pajero 3 door 6G75 Mivec with paddle shifted 5 speed
Then a Gen2 SR with full coil independent suspension.