750 4 crank help

I am assembling my 82 gpz 750 crank right now and it does not specify whether the oil hole goes towards the front of the engine or the rear of the engine. I thank you in advance for any enlightment you can provide great kz gods.

bump I looked through the manual and it doesn't specify which direction they go. I think they go towards the front according to the pic I have in the manual. But it doesn't confirm that anywhere. I took this engine apart awhile ago. I didn't notice the holes then even if i had I would have assumed the manual would tell me how to assemble it correctly. Thanks for any info that can be provided.