i put a hei dist. in my 46 this weekend the engine.it is a 52 235
i pulled the valve cover and plugs bumped the engine over until the intake valve closed, turned the motor with the fan looking through the spark plug hole until at tdc. the rotor was pointing at number one. i put in the hei and it fired up. now comes the weird part
i could not find the timing mark with the light so i stoped put number one back on tdc of the compression stroke crawled under pulled the dust cover and the steel ball on the fly wheel is 180
from the pointer. why?