I see on the trigger wheel webby they have a bracket that puts the sensor at about 4 o'clock, however, there is no guide on where to bolt it in
relation to, say, No1 cylinder at TDC on compression stroke?
Is there a guide anywhere as atm I have no idea where to put it!
(Diagram nicked from www.autosportslab.net)
Basically you need to fit the trigger wheel to that when the engine is at TDC, the sensor is 50 degrees around (5 teeth) from the missing tooth.
Set engine to TDC
Put bracket and sensor in a convienient place
Put wheel on with missing tooth 50 degrees or 5 teeth after sensor
Job done