Thanks folks.

The injectors were rebuilt by our resident injector expert here on the forum. Yes I used new heat shields, and yes facing the correct direction. Soapy water test shows no leaks there. Pretty confident the injectors are fine.

Any ideas on that top end noise? Wondering if I got the timing off, or if it moved.

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617 swapped Toyota Pickup, 22-24 MPG, 50k miles on swap