I have a b17 and am installing an engine management. Im having a problem with wiring the distributor. the directions call for 3 wires to be wired. 1. sensor supply +8v out 2. Main trigger signal input off the ckp ( i think its the blue wire ) and 3. Main trigger sensor earth (ground) but i dont see a ground on the distributor. any help would be appreciated...thanks

 

bump....help!!!