NEED HELP,FUEL PUMP BOLT ISSUE,LEAKS OIL

I’ve never seen two different lengths of those two bolts.
I suspect the different length was the cause of the problem.

I wasn’t sure if they were supposed to be different lengths but the bolt appear to be original. It looks the the shorter one in the front is that way because it can’t go as far back. I sure wish people would be more careful when they put things together. Once the carb is working good and this oil leak is taken care of this will hopefully be a reliable car.