Just reading where you say at the low down areas the car seems hesitant .
Is the idle sweet ? Any burblyness to it ?
Can you do activations for variable length inlet manifold flaps solenoids ?
Would be good diag info if you could get a guage on manifold vaccum , on a v8 should be real steady at about 21 inches of mercury .
Has it ever had a cambelt done ?
This engine is 4 cams one on each bank driven by the cam belt and a small link chain between the cams , does it have cam sensors on all cams or perhaps just on the inlets .
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