Newb Oil Filter Question

I would like to know what you guys are doing wrong with these 90° filters that makes them leak. I have never had one leak and I have always run them on all my engines.
I always run the PH8A size instead of the short PH43 but im considering trying the small filter on my swinger. I have to pull the exhaust head pipe off to get the filter out. It wont come out the top or the bottom...this is with stock HP manifolds and TTI pipes. Usually it would come out the top but I have aftermarket AC and its in the way.