How do I make sure my ignition timing is correct?

My distributor has to be turned and then bolted on otherwise the wires wont extend far enough to plug into the wiring harness...

So basically, instead of the flat part facing down, it faces the front of the car.

I know there has to be something has to be turned the right amount. Like that little piece inside of the head where you put the dizzy...

sorry guys i'm trying my best, lol. But yeah, can anyone tell me how to do this

 

first,extend ure wires, then u should center the distributer on the housing, to check for timing, ure going to need a timing light...

 

Well u must be some typa newb... newbier then me u damn newb.