if there are no marks on your timing gears return the timing set !!
there has to be two dots on the gears to line up
once you have the cam lined up rotate the engine to TDC firing # 1 cylinder & set the dist into place , the rotor sii now pointed at #1 on the dist cap , you can wire in sequence from there , also line up the reluctor with the pick up & then advance the timing slightly it will start from there & you can adjust timing accordingly once it is runnign