meabh, last year I let make a full new built of my 1973 911T engine head including new pistons and cylinders. They seriously recommended me to keep low at the first 500km but also to enhance the power after that and to make short full revs in the highest gear from 1000km on. Without this constant increase, the machine would remain lame forever. After the oil change I was supposed to get full power. I thought it was a quick time increase, but that's how I should do it.
Of course this can be different with your engine. But actually it is always so that one feels if the engine wants „more to have".
