Impressive!!

I would have thought for sure you'd have had a problem sealing each runner, when it was welded. And, that would have lead to some bypass between the runners. Which would have been noticable in some way....rough idle, stumbling during a certain RPM range....something.

You should get DOA heads AND a ported TB. Those would be a nice compliment to the ported manifold....or vice-a-versa.

I think regardless you should get a dyno test done......See what the results really are.

'93 4Runner - 3.4L 5VZ-FE, 2" body lift, on-board-air system, custom gauge cluster, rear e-locker, electric fan, custom built front and rear bumpers, sliders, 4,88 gears...all on 33x12.5's.