very hard to say..
most impt is the emissions, did it meet the required standards
or not..
A lot of black smoke.
But what I know about the B7 is that it requires fairly high rpm
to reach the optimum torque and power. Both figures are quite
impressive for its size. Comparable to the bigger engines.
The thing about higher rpm is of course engine life-span and
emission. There's always quite a fair bit of soot from B7s going at
highway speed.