I am installing a 22rte in a 4runner that is off-road use only. I want to do an EGR block-off to clean-up the engine, plus maybe gain a little power. Not sure what else the block-off entails other than a plate @ the head and upper intake manifold and capping off a few vaccum lines. What about the vsv controlled by the ecm and hot combustion temps. caused by the block-off??