Distritbutors Setting
 

I have a hard time setting up the distributor....

this is what i did... and why i cannot set the dist.

i had a blown head... so i decide to rebuild the whole engine... and i got all those taking care off... also the timing set...i got it too... but i can not or i dont know how to set the distributor... i dont know is it my distributor is bad or is it i not setting up right...
everytime i set the distributor... and i timing the timing it either read over 15* or below 5* mark....

does anyone know any website have the picture i can take a look... or have a picture wanna show me...

this is a
1990 toyota supra 3.0L 7MGTE TURBO.....


please help me....

Did you jump the terminals to the ECU to set base timing.