Ok I take it you're talking about ignition timing right, no biggie!. With the plugs out, put a finger on the #1 cylinder and turn the motor over until you feel compression then bring it up close to TDC, put the distributor in with the rotor pointing a bit to the right of where it should be and drop it in, odds are it won't go all the way down(to engage oil pump drive) so just crank the motor until it drops, then keep going until the rotor comes back around to #1, stop at your initial timing on the dampner then point the rotor at #1, done deal fire it up and put a light on it you should be right there!....