injected engine 12 with variable valve lift vvl means 14 for actuation of intake valve 15 includes a programmable engine control module 20 ecm it should be understood that engine 12 is a multiple cylinder engine and that valve 15 is individually representative of a plurality of engine valves in a plurality of engine cylinders intake manifold 18 is connected for air flow 19 to engine head 22 via runner 24 which supports a conventional fuel injector 25 head 22 supports intake valve 15 and exhaust valve 23 the ecm is electrically connected to vvl lift means 14 via first lead 30 for varying the lift of intake valve 15 engine throttling and consequent torque control is provided by varying the lift of the intake valves via ecm 20 in response to engine load request from an electronic pedal module 27 connected via second lead 28 and responsive to positional input of accelerator pedal 29 from operator 31 ecm 20 may be further connected to other engine and vehicle inputs and may be provided with algorithms for determining the instantaneous performance of engine 12 typically during operation of engine 12 as shown in fig1 there is substantially no vacuum in manifold 18 referring to fig2 a vacuum system 10 in accordance with the invention includes an engine 12 and components substantially as shown in fig1 in addition a controllable vacuum control valve 16 is disposed in the.