Earlier Tsunami stated that they opened up the bends as they were tight, I first went to Brough Park in 1964 and that it's the way it
was for many years but because of the bikes having only two valves, racing was slower and this meant passing was possible if you
didn't make the gate.
I know for a fact that Wolverhampton was a straight copy of Brough Park i.e long straights and tight bends, we both had a distinct
home advantage as against more open layout tracks.
The progression to Four Valve and later the Lay down engines have meant that some tracks have been altered to be easier to ride
and with less shale on the due to altered exhaust pipe layout, this has resulted in track lap times dropping a lot as the years have
gone by.