The Rover 2.6 is a bit unusual compared with more modern engines with the peak at low rpm.
With the 3.5 the peak is around 2500 already so you might not want to take it much higher.
Lowering the torque peak speed on an engine like the 3.5 could give an apparent increase in torque at lower rpm?
I fitted a "towing" cam to an '82 RR I once had which lowered the peak and worked well for towing a heavy trailer but there was not much torque available over 3000. It was a bit disappointing for normal road driving.
I guess it depends what you want to do with it, the std cam timing is a reasonable compromise for a RR.
Terry
80 109" 2.6 P ex Army GS, saved from the scrappie.
95 300tdi 130 Single cab tray.
2010 Guzzi 750
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