Race Technology Dash 2 Display

does anybody know what the pulses per mile is for a mk1 golf cabrio as i need this to set up the speedometer on the display.

They don't do pulses per mile - its a mechanical speedo on a Mk1 Golf.

I have bought a new set of digital clocks from Race Technology and to set up the speedometer you need to know the amount of pulses per mile.

it might be the number printed on the face of the clocks, but as above its cable driven not electronic. mk3 golf 1.8-2.0 8v speedo sensor will fit your box just need to wire it to the dash.  but i dont know what the pulse per mile is, id start by trying the 4 digit number on the face of the speedo to start with