Interpro in Bristol can map the unichip quite well, especially Dave Griffiths, also rare motorsport just off M25/M1 ? junction are authorised distibutors, they are aslso south african, which is where the Dasek chips come from, early versions were not very good as wiring is taken from the coil, as the Zed has 6, this signal was not very good, newer versions of chip are now suitable for the Zed and offer good gains, price circa £450 fitted and set up.
smithy