318 issues

SOUNDS LIKE THE TIMING IS OUT

Pull cylinder 1 spark plug and get the piston at top dead center.
This is the compresion stroke.
Have someone tap the motor over and put your finger over the spark plug hole and when the air pushes out ,it means the piston is on it's way up for the compresion stroke.
THEN check and make sure the crank damper is at top dead center also.
THEN make sure that the rotor is pointing to cylinder #1 on the cap.

You can install that gear anyway you would like,but some ways are better then others for the disrtributor and the way it sit's in the motor.
BUT make sure the distributor is in the right spot with cylinder #1.
and the motors at top dead center.