The intake manifold bolts appear to be top and bottom of each port, with no offset. Keep in mind, the bottom bolts are a pain to find and see with that carb sitting there, and about 35 yards of tubing of various sorts running everywhere. But I think they're top and bottom. Thats on the Colt.

Looking at the engine in the Montero will be a major undertaking. Its packed tight in the garage. I can't squeeze myself alongside it, have to get in and out through the rear hatch. I can't open the hood because the cherrypicker arm is about six inches above it. I'll have to roll it back a couple feet in order to open the hood.